51
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Brorsen KR. Reproducing global potential energy surfaces with continuous-filter convolutional neural networks. J Chem Phys 2019; 150:204104. [DOI: 10.1063/1.5093908] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Kurt R. Brorsen
- Department of Chemistry, University of Missouri, Columbia, Missouri 65203, USA
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52
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Park JW. Single-State Single-Reference and Multistate Multireference Zeroth-Order Hamiltonians in MS-CASPT2 and Conical Intersections. J Chem Theory Comput 2019; 15:3960-3973. [DOI: 10.1021/acs.jctc.9b00067] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jae Woo Park
- Department of Chemistry, Chungbuk National University (CBNU), Cheongju 28644, Korea
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53
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54
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Al-Saadon R, Shiozaki T, Knizia G. Visualizing Complex-Valued Molecular Orbitals. J Phys Chem A 2019; 123:3223-3228. [DOI: 10.1021/acs.jpca.9b01134] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rachael Al-Saadon
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Toru Shiozaki
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Gerald Knizia
- Department of Chemistry, The Pennsylvania State University, 401A Chemistry Building, University Park, Pennsylvania 16802, United States
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55
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Segarra-Martí J, Tran T, Bearpark MJ. Ultrafast and radiationless electronic excited state decay of uracil and thymine cations: computing the effects of dynamic electron correlation. Phys Chem Chem Phys 2019; 21:14322-14330. [PMID: 30698175 DOI: 10.1039/c8cp07189f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this article we characterise the radiationless decay of the first few electronic excited states of the cations of DNA/RNA nucleobases uracil and thymine, including the effects of dynamic electron correlation on energies and geometries (optimised with XMS-CASPT2). In both systems, we find that one state of 2n and another two of 2π+ character can be populated following photoionisation, and their different minima and interstate crossings are located. We find strong similarities between uracil and thymine cations: with accessible conical intersections suggesting that depopulation of their electronic excited states takes place on ultrafast timescales in both systems, suggesting that they are photostable in agreement with previous theoretical (uracil+) evidence. We find that dynamic electron correlation separates the energy levels of the "3-state" conical intersection (D2/D1/D0)CI previously located with CASSCF for uracil+, which will therefore have a different geometry and higher energy. Simulating the electronic and vibrational absorptions allows us to characterise spectral fingerprints that could be used to monitor these cation photo-processes experimentally.
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Affiliation(s)
- Javier Segarra-Martí
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, W12 0BZ, London, UK.
| | - Thierry Tran
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, W12 0BZ, London, UK.
| | - Michael J Bearpark
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, W12 0BZ, London, UK.
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56
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Sokolov AY. Multi-reference algebraic diagrammatic construction theory for excited states: General formulation and first-order implementation. J Chem Phys 2018; 149:204113. [DOI: 10.1063/1.5055380] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alexander Yu. Sokolov
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
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57
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Mai S, Marquetand P, González L. Nonadiabatic dynamics: The SHARC approach. WILEY INTERDISCIPLINARY REVIEWS. COMPUTATIONAL MOLECULAR SCIENCE 2018; 8:e1370. [PMID: 30450129 PMCID: PMC6220962 DOI: 10.1002/wcms.1370] [Citation(s) in RCA: 224] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 12/12/2022]
Abstract
We review the Surface Hopping including ARbitrary Couplings (SHARC) approach for excited-state nonadiabatic dynamics simulations. As a generalization of the popular surface hopping method, SHARC allows simulating the full-dimensional dynamics of molecules including any type of coupling terms beyond nonadiabatic couplings. Examples of these arbitrary couplings include spin-orbit couplings or dipole moment-laser field couplings, such that SHARC can describe ultrafast internal conversion, intersystem crossing, and radiative processes. The key step of the SHARC approach consists of a diagonalization of the Hamiltonian including these couplings, such that the nuclear dynamics is carried out on potential energy surfaces including the effects of the couplings-this is critical in any applications considering, for example, transition metal complexes or strong laser fields. We also give an overview over the new SHARC2.0 dynamics software package, released under the GNU General Public License, which implements the SHARC approach and several analysis tools. The review closes with a brief survey of applications where SHARC was employed to study the nonadiabatic dynamics of a wide range of molecular systems. This article is categorized under: Theoretical and Physical Chemistry > Reaction Dynamics and KineticsSoftware > Simulation MethodsSoftware > Quantum Chemistry.
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Affiliation(s)
- Sebastian Mai
- Institute of Theoretical Chemistry, Faculty of Chemistry University of Vienna Vienna Austria
| | - Philipp Marquetand
- Institute of Theoretical Chemistry, Faculty of Chemistry University of Vienna Vienna Austria
| | - Leticia González
- Institute of Theoretical Chemistry, Faculty of Chemistry University of Vienna Vienna Austria
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58
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Schlimgen AW, Mazziotti DA. Analytical gradients of variational reduced-density-matrix and wavefunction-based methods from an overlap-reweighted semidefinite program. J Chem Phys 2018; 149:164111. [DOI: 10.1063/1.5043104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Anthony W. Schlimgen
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, USA
| | - David A. Mazziotti
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, USA
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59
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Shea JAR, Neuscamman E. Communication: A mean field platform for excited state quantum chemistry. J Chem Phys 2018; 149:081101. [DOI: 10.1063/1.5045056] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Eric Neuscamman
- Department of Chemistry, University of California, Berkeley, California 94720, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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60
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Sen S, Schapiro I. A comprehensive benchmark of the XMS-CASPT2 method for the photochemistry of a retinal chromophore model. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1501112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Saumik Sen
- Fritz Haber Center for Molecular Dynamics, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Igor Schapiro
- Fritz Haber Center for Molecular Dynamics, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
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61
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Song C, Martínez TJ. Reduced scaling CASPT2 using supporting subspaces and tensor hyper-contraction. J Chem Phys 2018; 149:044108. [DOI: 10.1063/1.5037283] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Chenchen Song
- Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Todd J. Martínez
- Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
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62
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Lischka H, Nachtigallová D, Aquino AJA, Szalay PG, Plasser F, Machado FBC, Barbatti M. Multireference Approaches for Excited States of Molecules. Chem Rev 2018; 118:7293-7361. [DOI: 10.1021/acs.chemrev.8b00244] [Citation(s) in RCA: 197] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hans Lischka
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, P.R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
- Institute of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 17, 1090 Vienna, Austria
| | - Dana Nachtigallová
- Institute of Organic Chemistry and Biochemistry v.v.i., The Czech Academy of Sciences, Flemingovo nám. 2, 16610 Prague 6, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Palacký University, 78371 Olomouc, Czech Republic
| | - Adélia J. A. Aquino
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, P.R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
- Institute for Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Strasse 82, A-1190 Vienna, Austria
| | - Péter G. Szalay
- ELTE Eötvös Loránd University, Laboratory of Theoretical Chemistry, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Felix Plasser
- Institute of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 17, 1090 Vienna, Austria
- Department of Chemistry, Loughborough University, Leicestershire LE11 3TU, United Kingdom
| | - Francisco B. C. Machado
- Departamento de Química, Instituto Tecnológico de Aeronáutica, São José dos Campos 12228-900, São Paulo, Brazil
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63
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Evangelista FA. Perspective: Multireference coupled cluster theories of dynamical electron correlation. J Chem Phys 2018; 149:030901. [DOI: 10.1063/1.5039496] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Francesco A. Evangelista
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, USA
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64
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Tamayo-Mendoza T, Kreisbeck C, Lindh R, Aspuru-Guzik A. Automatic Differentiation in Quantum Chemistry with Applications to Fully Variational Hartree-Fock. ACS CENTRAL SCIENCE 2018; 4:559-566. [PMID: 29806002 PMCID: PMC5968443 DOI: 10.1021/acscentsci.7b00586] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Indexed: 05/05/2023]
Abstract
Automatic differentiation (AD) is a powerful tool that allows calculating derivatives of implemented algorithms with respect to all of their parameters up to machine precision, without the need to explicitly add any additional functions. Thus, AD has great potential in quantum chemistry, where gradients are omnipresent but also difficult to obtain, and researchers typically spend a considerable amount of time finding suitable analytical forms when implementing derivatives. Here, we demonstrate that AD can be used to compute gradients with respect to any parameter throughout a complete quantum chemistry method. We present DiffiQult, a Hartree-Fock implementation, entirely differentiated with the use of AD tools. DiffiQult is a software package written in plain Python with minimal deviation from standard code which illustrates the capability of AD to save human effort and time in implementations of exact gradients in quantum chemistry. We leverage the obtained gradients to optimize the parameters of one-particle basis sets in the context of the floating Gaussian framework.
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Affiliation(s)
- Teresa Tamayo-Mendoza
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Christoph Kreisbeck
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
- (C.K.) E-mail:
| | - Roland Lindh
- Department
of Chemistry-Ångström, The Theoretical Chemistry Programme,
Uppsala Center for Computational Chemistry, UC3, Uppsala University, Box 518, 751 20, Uppsala, Sweden
| | - Alán Aspuru-Guzik
- Department
of Chemistry and Chemical Biology, Harvard
University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
- Canadian
Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada
- (AA.) E-mail:
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65
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Affiliation(s)
- Jae Woo Park
- Department of Chemistry, Northwestern University , Evanston, IL, USA
| | - Toru Shiozaki
- Department of Chemistry, Northwestern University , Evanston, IL, USA
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66
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Rolik Z, Kállay M. Novel strategy to implement active-space coupled-cluster methods. J Chem Phys 2018; 148:124108. [PMID: 29604813 DOI: 10.1063/1.5004971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A new approach is presented for the efficient implementation of coupled-cluster (CC) methods including higher excitations based on a molecular orbital space partitioned into active and inactive orbitals. In the new framework, the string representation of amplitudes and intermediates is used as long as it is beneficial, but the contractions are evaluated as matrix products. Using a new diagrammatic technique, the CC equations are represented in a compact form due to the string notations we introduced. As an application of these ideas, a new automated implementation of the single-reference-based multi-reference CC equations is presented for arbitrary excitation levels. The new program can be considered as an improvement over the previous implementations in many respects; e.g., diagram contributions are evaluated by efficient vectorized subroutines. Timings for test calculations for various complete active-space problems are presented. As an application of the new code, the weak interactions in the Be dimer were studied.
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Affiliation(s)
- Zoltán Rolik
- MTA-BME "Lendület" Quantum Chemistry Research Group, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521 Budapest, Hungary
| | - Mihály Kállay
- MTA-BME "Lendület" Quantum Chemistry Research Group, Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, H-1521 Budapest, Hungary
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67
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Zhang B, Vandezande JE, Reynolds RD, Schaefer HF. Spin–Orbit Coupling via Four-Component Multireference Methods: Benchmarking on p-Block Elements and Tentative Recommendations. J Chem Theory Comput 2018; 14:1235-1246. [DOI: 10.1021/acs.jctc.7b00989] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Boyi Zhang
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Jonathon E. Vandezande
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Ryan D. Reynolds
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
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68
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Sand AM, Hoyer CE, Sharkas K, Kidder KM, Lindh R, Truhlar DG, Gagliardi L. Analytic Gradients for Complete Active Space Pair-Density Functional Theory. J Chem Theory Comput 2017; 14:126-138. [DOI: 10.1021/acs.jctc.7b00967] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew M. Sand
- Department
of Chemistry, Chemical Theory Center, and the Minnesota Supercomputing
Institute, The University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Chad E. Hoyer
- Department
of Chemistry, Chemical Theory Center, and the Minnesota Supercomputing
Institute, The University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Kamal Sharkas
- Department
of Chemistry, Chemical Theory Center, and the Minnesota Supercomputing
Institute, The University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Katherine M. Kidder
- Department
of Chemistry, Chemical Theory Center, and the Minnesota Supercomputing
Institute, The University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Roland Lindh
- Department
of Chemistry−Ångström, The Theoretical Chemistry
Programme, Uppsala University, P.O. Box 518, SE-751 20 Uppsala, Sweden
| | - Donald G. Truhlar
- Department
of Chemistry, Chemical Theory Center, and the Minnesota Supercomputing
Institute, The University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Laura Gagliardi
- Department
of Chemistry, Chemical Theory Center, and the Minnesota Supercomputing
Institute, The University of Minnesota, Minneapolis, Minnesota 55455, United States
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69
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Budzák Š, Scalmani G, Jacquemin D. Accurate Excited-State Geometries: A CASPT2 and Coupled-Cluster Reference Database for Small Molecules. J Chem Theory Comput 2017; 13:6237-6252. [PMID: 29140697 PMCID: PMC5729545 DOI: 10.1021/acs.jctc.7b00921] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
![]()
We
present an investigation of the excited-state structural parameters
determined for a large set of small compounds with the dual goals
of defining reference values for further works and assessing the quality
of the geometries obtained with relatively cheap computational approaches.
In the first stage, we compare the excited-state geometries obtained
with ADC(2), CC2, CCSD, CCSDR(3), CC3, and CASPT2 and large atomic
basis sets. It is found that CASPT2 and CC3 results are generally
in very good agreement with one another (typical differences of ca.
3 × 10–3 Å) when all electrons are correlated
and when the aug-cc-pVTZ atomic basis set is employed with both methods.
In a second stage, a statistical analysis reveals that, on the one
hand, the excited-state (ES) bond lengths are much more sensitive
to the selected level of theory than their ground-state (GS) counterparts
and, on the other hand, that CCSDR(3) is probably the most cost-effective
method delivering accurate structures. Indeed, CCSD tends to provide
too compact multiple bond lengths on an almost systematic basis, whereas
both CC2 and ADC(2) tend to exaggerate these bond distances, with
more erratic error patterns, especially for the latter method. The
deviations are particularly marked for the polarized CO and CN bonds,
as well as for the puckering angle in formaldehyde homologues. In
the last part of this contribution, we provide a series of CCSDR(3)
GS and ES geometries of medium-sized molecules to be used as references
in further investigations.
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Affiliation(s)
- Šimon Budzák
- Department of Chemistry, Faculty of Natural Sciences, Matej Bel University , Tajovského 40, SK-97400 Banská Bystrica, Slovak Republic
| | - Giovanni Scalmani
- Gaussian Incorporated , 340 Quinnipiac Street, Building 40, Wallingford, Connecticut 06492 United States
| | - Denis Jacquemin
- Laboratoire CEISAM-UMR CNRS 6230, Université de Nantes , 2 Rue de la Houssiniére, BP 92208, 44322 Cedex 3 Nantes, France.,Institut Universitaire de France , 1 Rue Descartes, 75231 Cedex 5 Paris, France
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70
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Yanai T, Saitow M, Xiong XG, Chalupský J, Kurashige Y, Guo S, Sharma S. Multistate Complete-Active-Space Second-Order Perturbation Theory Based on Density Matrix Renormalization Group Reference States. J Chem Theory Comput 2017; 13:4829-4840. [DOI: 10.1021/acs.jctc.7b00735] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Takeshi Yanai
- Department
of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, 444-8585 Aichi Japan
- The Graduate University for Advanced Studies, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Masaaki Saitow
- The Graduate University for Advanced Studies, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Xiao-Gen Xiong
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Jakub Chalupský
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 16110 Prague 6, Czech Republic
| | - Yuki Kurashige
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyou-ku, Kyoto 606-8520, Japan
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Sheng Guo
- Division
of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Sandeep Sharma
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Boulder, Colorado 80302, United States
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71
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Shiozaki T. BAGEL
: Brilliantly Advanced General Electronic‐structure Library. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2017. [DOI: 10.1002/wcms.1331] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Toru Shiozaki
- Department of ChemistryNorthwestern University Evanston IL USA
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72
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Affiliation(s)
- Jae Woo Park
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Toru Shiozaki
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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73
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Sokolov AY, Guo S, Ronca E, Chan GKL. Time-dependent N-electron valence perturbation theory with matrix product state reference wavefunctions for large active spaces and basis sets: Applications to the chromium dimer and all-trans polyenes. J Chem Phys 2017; 146:244102. [DOI: 10.1063/1.4986975] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Alexander Yu. Sokolov
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Sheng Guo
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Enrico Ronca
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
| | - Garnet Kin-Lic Chan
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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74
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Krupička M, Sivalingam K, Huntington L, Auer AA, Neese F. A toolchain for the automatic generation of computer codes for correlated wavefunction calculations. J Comput Chem 2017; 38:1853-1868. [DOI: 10.1002/jcc.24833] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/24/2017] [Accepted: 03/27/2017] [Indexed: 01/30/2023]
Affiliation(s)
- Martin Krupička
- Max-Planck-Institut für Chemische Energiekonversion, Department of Molecular Theory and Spectroscopy; Stiftstr. 34-36 Mülheim a.d. Ruhr 45470 Germany
| | - Kantharuban Sivalingam
- Max-Planck-Institut für Chemische Energiekonversion, Department of Molecular Theory and Spectroscopy; Stiftstr. 34-36 Mülheim a.d. Ruhr 45470 Germany
| | - Lee Huntington
- Max-Planck-Institut für Chemische Energiekonversion, Department of Molecular Theory and Spectroscopy; Stiftstr. 34-36 Mülheim a.d. Ruhr 45470 Germany
| | - Alexander A. Auer
- Max-Planck-Institut für Chemische Energiekonversion, Department of Molecular Theory and Spectroscopy; Stiftstr. 34-36 Mülheim a.d. Ruhr 45470 Germany
| | - Frank Neese
- Max-Planck-Institut für Chemische Energiekonversion, Department of Molecular Theory and Spectroscopy; Stiftstr. 34-36 Mülheim a.d. Ruhr 45470 Germany
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75
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Park JW, Shiozaki T. Analytical Derivative Coupling for Multistate CASPT2 Theory. J Chem Theory Comput 2017; 13:2561-2570. [DOI: 10.1021/acs.jctc.7b00018] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jae Woo Park
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Toru Shiozaki
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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76
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Pijeau S, Hohenstein EG. Improved Complete Active Space Configuration Interaction Energies with a Simple Correction from Density Functional Theory. J Chem Theory Comput 2017; 13:1130-1146. [DOI: 10.1021/acs.jctc.6b00893] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shiela Pijeau
- Department
of Chemistry and Biochemistry, The City College of New York, New York, New York 10031, United States
| | - Edward G. Hohenstein
- Department
of Chemistry and Biochemistry, The City College of New York, New York, New York 10031, United States
- Ph.D.
Program in Chemistry, The City University of New York, New York, New York 10016, United States
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77
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Yanai T, Kurashige Y, Saitow M, Chalupský J, Lindh R, Malmqvist PÅ. Influence of the choice of projection manifolds in the CASPT2 implementation. Mol Phys 2016. [DOI: 10.1080/00268976.2016.1271152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Takeshi Yanai
- Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi, Japan
- Department of Functional Molecular Science, School of Physical Sciences, The Graduate University for Advanced Studies, Okazaki, Aichi, Japan
| | - Yuki Kurashige
- Graduate School of System Informatics, Kobe University, Kobe, Japan
- Japan Science and Technology Agency, PRESTO, Kawaguchi, Saitama, Japan
| | - Masaaki Saitow
- Department of Functional Molecular Science, School of Physical Sciences, The Graduate University for Advanced Studies, Okazaki, Aichi, Japan
| | - Jakub Chalupský
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Roland Lindh
- Uppsala Centre for Computational Chemistry – UC3, and Department of Chemistry – Ångström, Uppsala University, Uppsala, Sweden
| | - Per-Åke Malmqvist
- Department of Theoretical Chemistry, University of Lund, Lund, Sweden
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78
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Hohenstein EG. Analytic formulation of derivative coupling vectors for complete active space configuration interaction wavefunctions with floating occupation molecular orbitals. J Chem Phys 2016; 145:174110. [DOI: 10.1063/1.4966235] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Edward G. Hohenstein
- Department of Chemistry and Biochemistry, The City College of New York, New York, New York 10031, USA and Ph.D. Program in Chemistry, The City University of New York, New York, New York 10016, USA
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79
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Shiozaki T, Yanai T. Hyperfine Coupling Constants from Internally Contracted Multireference Perturbation Theory. J Chem Theory Comput 2016; 12:4347-51. [DOI: 10.1021/acs.jctc.6b00646] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Toru Shiozaki
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Takeshi Yanai
- Department
of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
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80
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Sivalingam K, Krupicka M, Auer AA, Neese F. Comparison of fully internally and strongly contracted multireference configuration interaction procedures. J Chem Phys 2016; 145:054104. [DOI: 10.1063/1.4959029] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Kantharuban Sivalingam
- Max-Planck Institute of Chemical Energy Conversion, Stiftstrasse 34, 45470 Mülheim an der Ruhr, Germany
| | - Martin Krupicka
- Max-Planck Institute of Chemical Energy Conversion, Stiftstrasse 34, 45470 Mülheim an der Ruhr, Germany
| | - Alexander A. Auer
- Max-Planck Institute of Chemical Energy Conversion, Stiftstrasse 34, 45470 Mülheim an der Ruhr, Germany
| | - Frank Neese
- Max-Planck Institute of Chemical Energy Conversion, Stiftstrasse 34, 45470 Mülheim an der Ruhr, Germany
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81
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Vlaisavljevich B, Shiozaki T. Nuclear Energy Gradients for Internally Contracted Complete Active Space Second-Order Perturbation Theory: Multistate Extensions. J Chem Theory Comput 2016; 12:3781-7. [DOI: 10.1021/acs.jctc.6b00572] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bess Vlaisavljevich
- Department of Chemistry, Northwestern University, 2145 Sheridan
Road, Evanston, Illinois 60208, United States
| | - Toru Shiozaki
- Department of Chemistry, Northwestern University, 2145 Sheridan
Road, Evanston, Illinois 60208, United States
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82
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Segarra-Martí J, Garavelli M, Aquilante F. Multiconfigurational Second-Order Perturbation Theory with Frozen Natural Orbitals Extended to the Treatment of Photochemical Problems. J Chem Theory Comput 2016; 11:3772-84. [PMID: 26574459 DOI: 10.1021/acs.jctc.5b00479] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new flavor of the frozen natural orbital complete active space second-order perturbation theory method (FNO-CASPT2, Aquilante et al., J. Chem. Phys. 131, 034113) is proposed herein. In this new implementation, the virtual space in Cholesky decomposition-based CASPT2 computations (CD-CASPT2) is truncated by excluding those orbitals that contribute the least toward preserving a predefined value of the trace of an approximate density matrix, as that represents a measure of the amount of dynamic correlation retained in the model. In this way, the amount of correlation included is practically constant at all nuclear arrangements, thus allowing for the computation of smooth electronic states surfaces and energy gradients-essential requirements for theoretical studies in photochemistry. The method has been benchmarked for a series of relevant biochromophores for which large speed-ups have been recorded while retaining the accuracy achieved in the corresponding CD-CASPT2 calculations. Both vertical excitation energies and gradient calculations have been carried out to establish general guidelines as to how much correlation needs to be retained in the calculation for the results to be consistent with the CD-CASPT2 findings. Our results feature errors within a tenth of an eV for the most difficult cases and have been validated to be used for gradient computations where an up to 3-fold speed-up is observed depending on the size of the system and the basis set employed.
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Affiliation(s)
- Javier Segarra-Martí
- Dipartimento di Chimica "G. Ciamician", Università di Bologna , Via Selmi 2, IT-40126 Bologna, Italy
| | - Marco Garavelli
- Dipartimento di Chimica "G. Ciamician", Università di Bologna , Via Selmi 2, IT-40126 Bologna, Italy.,Université de Lyon, CNRS , Institut de Chimie de Lyon, École Normale Supérieure de Lyon, 46 Allée d'Italie, F-69364 Lyon Cedex 07, France
| | - Francesco Aquilante
- Dipartimento di Chimica "G. Ciamician", Università di Bologna , Via Selmi 2, IT-40126 Bologna, Italy
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83
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Song C, Wang LP, Martínez TJ. Automated Code Engine for Graphical Processing Units: Application to the Effective Core Potential Integrals and Gradients. J Chem Theory Comput 2015; 12:92-106. [PMID: 26586267 DOI: 10.1021/acs.jctc.5b00790] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present an automated code engine (ACE) that automatically generates optimized kernels for computing integrals in electronic structure theory on a given graphical processing unit (GPU) computing platform. The code generator in ACE creates multiple code variants with different memory and floating point operation trade-offs. A graph representation is created as the foundation of the code generation, which allows the code generator to be extended to various types of integrals. The code optimizer in ACE determines the optimal code variant and GPU configurations for a given GPU computing platform by scanning over all possible code candidates and then choosing the best-performing code candidate for each kernel. We apply ACE to the optimization of effective core potential integrals and gradients. It is observed that the best code candidate varies with differing angular momentum, floating point precision, and type of GPU being used, which shows that the ACE may be a powerful tool in adapting to fast evolving GPU architectures.
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Affiliation(s)
- Chenchen Song
- Department of Chemistry and the PULSE Institute, Stanford University , Stanford, California 94305, United States.,SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States
| | - Lee-Ping Wang
- Department of Chemistry and the PULSE Institute, Stanford University , Stanford, California 94305, United States.,SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States
| | - Todd J Martínez
- Department of Chemistry and the PULSE Institute, Stanford University , Stanford, California 94305, United States.,SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States
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84
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Saitow M, Kurashige Y, Yanai T. Fully Internally Contracted Multireference Configuration Interaction Theory Using Density Matrix Renormalization Group: A Reduced-Scaling Implementation Derived by Computer-Aided Tensor Factorization. J Chem Theory Comput 2015; 11:5120-31. [DOI: 10.1021/acs.jctc.5b00270] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masaaki Saitow
- The Graduate University for Advanced Studies, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Yuki Kurashige
- The Graduate University for Advanced Studies, Myodaiji, Okazaki, Aichi 444-8585, Japan
- Department
of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takeshi Yanai
- The Graduate University for Advanced Studies, Myodaiji, Okazaki, Aichi 444-8585, Japan
- Department
of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
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85
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Shiozaki T, Mizukami W. Relativistic Internally Contracted Multireference Electron Correlation Methods. J Chem Theory Comput 2015; 11:4733-9. [DOI: 10.1021/acs.jctc.5b00754] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Toru Shiozaki
- Department
of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, United States
| | - Wataru Mizukami
- Department
of Energy and Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Park, Fukuoka, 816-8580, Japan
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86
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Hohenstein EG, Bouduban MEF, Song C, Luehr N, Ufimtsev IS, Martínez TJ. Analytic first derivatives of floating occupation molecular orbital-complete active space configuration interaction on graphical processing units. J Chem Phys 2015; 143:014111. [DOI: 10.1063/1.4923259] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Edward G. Hohenstein
- Department of Chemistry and the PULSE Institute,
Stanford University, Stanford, California 94305,
USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
| | - Marine E. F. Bouduban
- Department of Chemistry and the PULSE Institute,
Stanford University, Stanford, California 94305,
USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
- Group for Photochemical Dynamics, Institute of Chemical
Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Chenchen Song
- Department of Chemistry and the PULSE Institute,
Stanford University, Stanford, California 94305,
USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
| | - Nathan Luehr
- Department of Chemistry and the PULSE Institute,
Stanford University, Stanford, California 94305,
USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
| | - Ivan S. Ufimtsev
- Department of Chemistry and the PULSE Institute,
Stanford University, Stanford, California 94305,
USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
| | - Todd J. Martínez
- Department of Chemistry and the PULSE Institute,
Stanford University, Stanford, California 94305,
USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025,
USA
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