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Dar DB, Baranova A, Maitra NT. Reformulation of Time-Dependent Density Functional Theory for Nonperturbative Dynamics: The Rabi Oscillation Problem Resolved. PHYSICAL REVIEW LETTERS 2024; 133:096401. [PMID: 39270163 DOI: 10.1103/physrevlett.133.096401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/18/2024] [Indexed: 09/15/2024]
Abstract
Rabi oscillations have long been thought to be out of reach in simulations using time-dependent density functional theory (TDDFT), a prominent symptom of the failure of the adiabatic approximation for nonperturbative dynamics. We present a reformulation of TDDFT which requires response quantities only, thus enabling an adiabatic approximation to predict such dynamics accurately because the functional is evaluated on a density close to the ground state, instead of on the fully nonperturbative density. Our reformulation applies to any real-time dynamics, redeeming TDDFT far from equilibrium. Examples of a resonantly-driven local excitation in a model He atom, and charge-transfer in the LiCN molecule are given.
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de Faria JC, Santiago J, Francis Z, Bernal MA. Time-Dependent Density-Functional Theory for Determining the Electron-Capture Cross Section for Protons Impacting on Atoms and Molecules. J Phys Chem A 2023; 127:2453-2459. [PMID: 36917468 DOI: 10.1021/acs.jpca.2c08213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
The use of the Time-Dependent Density-Functional Theory (TDDFT) has increased in the atomic collision field. Calculating the electron-capture cross section (ECCS) for protons is an important question in hadrontherapy and plasma physics, among other areas. In previous studies, it was shown that the approach based on the Local Density Approximation (LDA) fails in the 1-50 keV region, requiring the use of the Optimized Effective Potential (OEP) method. In this work, the ECCS values for 1-50 keV protons impacting on isolated hydrogen, carbon, nitrogen, oxygen, and nitrogenous atoms were determined using the TDDFT. It is shown that adding the Self Interaction Correction to the LDA (LDA-Sic) allows obtaining results close to those provided by the OEP and experiments, with the advantage that the LDA-Sic consumes less computational time. In addition, it was demonstrated that it is imperative to include the spin correction for the specific helium and oxygen cases, in order to get good results for the ECCS using the TDDFT. Theoretical results obtained in this work show excellent agreement with experimental values.
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Affiliation(s)
- Jhaison C de Faria
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas 13083-859, SP, Brazil
| | - João Santiago
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas 13083-859, SP, Brazil
| | - Ziad Francis
- Faculty of Sciences, Campus of Science and Technologies, Saint Joseph University of Beirut, 22411 Mansourieh, Lebanon
| | - Mario A Bernal
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas 13083-859, SP, Brazil
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Yu W, Gao CZ, Jiang T, Zou Y, Wang JG, Wu Y, Wei B. A theoretical study of Ar 8+-acetylene collisions at 1.2 MeV: Ionization and dissociation dynamics. J Chem Phys 2019; 150:124304. [PMID: 30927893 DOI: 10.1063/1.5082729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We theoretically study Ar8+-induced dissociation of C2H2 molecule at 1.2 MeV using the time-dependent density-functional theory non-adiabatically coupled to nuclear dynamics. We find that molecular dissociation depends strongly on the ionization at the initial stage and the collision configuration. A detailed analysis shows a correspondence between the charge state of [C2H2]q+ and the final fragments. A remarkable impact parameter effect provides deep insights of bond breakup and electronic transport. We analyze two typical sequential dissociation channels reported in experiments by tracking structural and electronic dynamics in real time. Our results provide better understanding of experiments. Moreover, the comparison between various exchange-correlation functionals reveals that electrons' correlation and self-interaction do not significantly impact the initial ionization and fragment distribution in the present study.
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Affiliation(s)
- W Yu
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - C-Z Gao
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - T Jiang
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - Y Zou
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - J-G Wang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Y Wu
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - B Wei
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
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Hervé du Penhoat MA, Moraga NRG, Gaigeot MP, Vuilleumier R, Tavernelli I, Politis MF. Proton Collision on Deoxyribose Originating from Doubly Ionized Water Molecule Dissociation. J Phys Chem A 2018; 122:5311-5320. [PMID: 29846073 DOI: 10.1021/acs.jpca.8b04787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this work, we studied the fragmentation dynamics of 2-deoxy-d-ribose (DR) in solution that arises from the double ionization of a water molecule in its primary hydration shell. This process was modeled in the framework of ab initio molecular dynamics. The charge unbalanced in the solvent molecules produces a Coulomb explosion with the consequent release of protons with kinetic energy in the few electronvolts range, which collide with the surrounding molecules in solution inducing further chemical reactions. In particular, we observe proton collisions with the solute molecule DR, which leads to a complete ring opening. In DNA, damage to the DR moiety may lead to DNA strand breaking. This mechanism can be understood as one of the possible steps in the radiation-induced fragmentation of DNA chains.
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Affiliation(s)
| | | | - Marie-Pierre Gaigeot
- LAMBE UMR8587, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement , Université d'Evry val d'Essonne, Université Paris-Saclay, CEA, CNRS , Blvd F. Mitterrand , 91025 Evry , France
| | - Rodolphe Vuilleumier
- PASTEUR, Département de chimie, École normale supérieure , PSL University, Sorbonne Université, CNRS , 75005 Paris , France
| | - Ivano Tavernelli
- IBM Research-Zurich , Säumerstrasse 4 , 8803 Rüschlikon , Switzerland
| | - Marie-Fraņcoise Politis
- LAMBE UMR8587, Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement , Université d'Evry val d'Essonne, Université Paris-Saclay, CEA, CNRS , Blvd F. Mitterrand , 91025 Evry , France
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Parise A, Alvarez-Ibarra A, Wu X, Zhao X, Pilmé J, Lande ADL. Quantum Chemical Topology of the Electron Localization Function in the Field of Attosecond Electron Dynamics. J Phys Chem Lett 2018; 9:844-850. [PMID: 29384381 DOI: 10.1021/acs.jpclett.7b03379] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report original analyses of attosecond electron dynamics of molecules subject to collisions by high energy charged particles based on Real-Time Time-Dependent-Density-Functional-Theory simulations coupled to Topological Analyses of the Electron Localization Function (TA-TD-ELF). We investigate irradiation of water and guanine. TA-TD-ELF enables qualitative and quantitative characterizations of bond breaking and formation, of charge migration within topological basins, or of electron attachment to the colliding particle. Whereas the Lewis-VSEPR structure of gas phase water is blown out within a few attoseconds after collision, that of guanine is far more robust and reconstitutes rapidly after impact even though the molecule remains electronically excited. This difference is accounted by the presence of the electron bath surrounding the impact point which enables energy relaxation within the molecule. Our approach should stimulate future studies to unravel the early steps following irradiation of various types of systems (isolated molecules, biomolecules, nanoclusters, solids, etc.) and is also readily applicable to irradiation by photons of various energies.
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Affiliation(s)
- Angela Parise
- Laboratoire de Chimie Physique, Université Paris Sud, CNRS , Université Paris Saclay. 15 avenue Jean Perrin, F91405 Orsay, France
| | - Aurelio Alvarez-Ibarra
- Laboratoire de Chimie Physique, Université Paris Sud, CNRS , Université Paris Saclay. 15 avenue Jean Perrin, F91405 Orsay, France
| | - Xiaojing Wu
- Laboratoire de Chimie Physique, Université Paris Sud, CNRS , Université Paris Saclay. 15 avenue Jean Perrin, F91405 Orsay, France
| | - Xiaodong Zhao
- Laboratoire de Chimie Physique, Université Paris Sud, CNRS , Université Paris Saclay. 15 avenue Jean Perrin, F91405 Orsay, France
| | - Julien Pilmé
- Laboratoire de Chimie Théorique, Sorbonne Universités, Université Pierre et Marie Curie, CNRS , F75005 Paris, France
| | - Aurélien de la Lande
- Laboratoire de Chimie Physique, Université Paris Sud, CNRS , Université Paris Saclay. 15 avenue Jean Perrin, F91405 Orsay, France
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Suzuki Y, Lacombe L, Watanabe K, Maitra NT. Exact Time-Dependent Exchange-Correlation Potential in Electron Scattering Processes. PHYSICAL REVIEW LETTERS 2017; 119:263401. [PMID: 29328727 DOI: 10.1103/physrevlett.119.263401] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Indexed: 06/07/2023]
Abstract
We identify peak and valley structures in the exact exchange-correlation potential of time-dependent density functional theory that are crucial for time-resolved electron scattering in a model one-dimensional system. These structures are completely missed by adiabatic approximations that, consequently, significantly underestimate the scattering probability. A recently proposed nonadiabatic approximation is shown to correctly capture the approach of the electron to the target when the initial Kohn-Sham state is chosen judiciously, and it is more accurate than standard adiabatic functionals but ultimately fails to accurately capture reflection. These results may explain the underestimation of scattering probabilities in some recent studies on molecules and surfaces.
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Affiliation(s)
- Yasumitsu Suzuki
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Lionel Lacombe
- Department of Physics and Astronomy, Hunter College and the Graduate Center of the City University of New York, 695 Park Avenue, New York, New York 10065, USA
| | - Kazuyuki Watanabe
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Neepa T Maitra
- Department of Physics and Astronomy, Hunter College and the Graduate Center of the City University of New York, 695 Park Avenue, New York, New York 10065, USA
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Affiliation(s)
- Rui-Ting Zhao
- The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing, 100875, China
- Beijing Radiation Center, Beijing, 100875, China
| | - Nan Zhang
- The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing, 100875, China
- Beijing Radiation Center, Beijing, 100875, China
| | - Feng-Shou Zhang
- The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing, 100875, China
- Beijing Radiation Center, Beijing, 100875, China
- Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou, 730000 China
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