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Kato K, Wang Y, Kobayashi J, Julienne PS, Inouye S. Isotopic Shift of Atom-Dimer Efimov Resonances in K-Rb Mixtures: Critical Effect of Multichannel Feshbach Physics. Phys Rev Lett 2017; 118:163401. [PMID: 28474928 DOI: 10.1103/physrevlett.118.163401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Indexed: 06/07/2023]
Abstract
Multichannel Efimov physics is investigated in ultracold heteronuclear admixtures of K and Rb atoms. We observe a shift in the scattering length where the first atom-dimer resonance appears in the ^{41}K-^{87}Rb system relative to the position of the previously observed atom-dimer resonance in the ^{40}K-^{87}Rb system. This shift is well explained by our calculations with a three-body model including van der Waals interactions, and, more importantly, multichannel spinor physics. With only minor differences in the atomic masses of the admixtures, the shift in the atom-dimer resonance positions can be cleanly ascribed to the isolated and overlapping Feshbach resonances in the ^{40}K-^{87}Rb and ^{41}K-^{87}Rb systems, respectively. Our study demonstrates the role of multichannel Feshbach physics in determining Efimov resonances in heteronuclear three-body systems.
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Affiliation(s)
- K Kato
- Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Yujun Wang
- Department of Physics, Kansas State University, 116 Cardwell Hall, Manhattan, Kansas 66506, USA
| | - J Kobayashi
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - P S Julienne
- Joint Quantum Institute, University of Maryland and NIST, College Park, Maryland 20742, USA
| | - S Inouye
- Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
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Zürn G, Lompe T, Wenz AN, Jochim S, Julienne PS, Hutson JM. Precise characterization of 6Li Feshbach resonances using trap-sideband-resolved RF spectroscopy of weakly bound molecules. Phys Rev Lett 2013; 110:135301. [PMID: 23581332 DOI: 10.1103/physrevlett.110.135301] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Indexed: 06/02/2023]
Abstract
We perform radio-frequency dissociation spectroscopy of weakly bound 6Li2 Feshbach molecules using low-density samples of about 30 molecules in an optical dipole trap. Combined with a high magnetic field stability, this allows us to resolve the discrete trap levels in the radio-frequency dissociation spectra. This novel technique allows the binding energy of Feshbach molecules to be determined with unprecedented precision. We use these measurements as an input for a fit to the 6Li scattering potential using coupled-channel calculations. From this new potential, we determine the pole positions of the broad 6Li Feshbach resonances with an accuracy better than 7×10(-4) of the resonance widths. This eliminates the dominant uncertainty for current precision measurements of the equation of state of strongly interacting Fermi gases. As an important consequence, our results imply a corrected value for the Bertsch parameter ξ measured by Ku et al. [Science 335, 563 (2012)], which is ξ=0.370(5)(8).
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Affiliation(s)
- G Zürn
- Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, 69120 Heidelberg, Germany
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Julienne PS, Davis J. Cascade and radiation trapping effects on atmospheric atomic oxygen emission excited by electron impact. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja081i007p01397] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Berninger M, Zenesini A, Huang B, Harm W, Nägerl HC, Ferlaino F, Grimm R, Julienne PS, Hutson JM. Universality of the three-body parameter for Efimov states in ultracold cesium. Phys Rev Lett 2011; 107:120401. [PMID: 22026757 DOI: 10.1103/physrevlett.107.120401] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Indexed: 05/31/2023]
Abstract
We report on the observation of triatomic Efimov resonances in an ultracold gas of cesium atoms. Exploiting the wide tunability of interactions resulting from three broad Feshbach resonances in the same spin channel, we measure magnetic-field dependent three-body recombination loss. The positions of the loss resonances yield corresponding values for the three-body parameter, which in universal few-body physics is required to describe three-body phenomena and, in particular, to fix the spectrum of Efimov states. Our observations show a robust universal behavior with a three-body parameter that stays essentially constant.
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Affiliation(s)
- M Berninger
- Institut für Experimentalphysik and Zentrum für Quantenphysik, Universität Innsbruck, 6020 Innsbruck, Austria
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Blatt S, Nicholson TL, Bloom BJ, Williams JR, Thomsen JW, Julienne PS, Ye J. Measurement of optical Feshbach resonances in an ideal gas. Phys Rev Lett 2011; 107:073202. [PMID: 21902391 DOI: 10.1103/physrevlett.107.073202] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Indexed: 05/31/2023]
Abstract
Using a narrow intercombination line in alkaline earth atoms to mitigate large inelastic losses, we explore the optical Feshbach resonance effect in an ultracold gas of bosonic (88)Sr. A systematic measurement of three resonances allows precise determinations of the optical Feshbach resonance strength and scaling law, in agreement with coupled-channel theory. Resonant enhancement of the complex scattering length leads to thermalization mediated by elastic and inelastic collisions in an otherwise ideal gas. Optical Feshbach resonance could be used to control atomic interactions with high spatial and temporal resolution.
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Affiliation(s)
- S Blatt
- JILA and Department of Physics, NIST and University of Colorado, Boulder, 80309-0440, USA
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Ospelkaus S, Ni KK, Wang D, de Miranda MHG, Neyenhuis B, Quéméner G, Julienne PS, Bohn JL, Jin DS, Ye J. Quantum-state controlled chemical reactions of ultracold potassium-rubidium molecules. Science 2010; 327:853-7. [PMID: 20150499 DOI: 10.1126/science.1184121] [Citation(s) in RCA: 315] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
How does a chemical reaction proceed at ultralow temperatures? Can simple quantum mechanical rules such as quantum statistics, single partial-wave scattering, and quantum threshold laws provide a clear understanding of the molecular reactivity under a vanishing collision energy? Starting with an optically trapped near-quantum-degenerate gas of polar 40K87Rb molecules prepared in their absolute ground state, we report experimental evidence for exothermic atom-exchange chemical reactions. When these fermionic molecules were prepared in a single quantum state at a temperature of a few hundred nanokelvin, we observed p-wave-dominated quantum threshold collisions arising from tunneling through an angular momentum barrier followed by a short-range chemical reaction with a probability near unity. When these molecules were prepared in two different internal states or when molecules and atoms were brought together, the reaction rates were enhanced by a factor of 10 to 100 as a result of s-wave scattering, which does not have a centrifugal barrier. The measured rates agree with predicted universal loss rates related to the two-body van der Waals length.
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Affiliation(s)
- S Ospelkaus
- JILA, NIST and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309, USA
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Ospelkaus S, Ni KK, de Miranda MHG, Neyenhuis B, Wang D, Kotochigova S, Julienne PS, Jin DS, Ye J. Ultracold polar molecules near quantum degeneracy. Faraday Discuss 2009; 142:351-9; discussion 429-61. [DOI: 10.1039/b821298h] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ni KK, Ospelkaus S, de Miranda MHG, Pe'er A, Neyenhuis B, Zirbel JJ, Kotochigova S, Julienne PS, Jin DS, Ye J. A High Phase-Space-Density Gas of Polar Molecules. Science 2008; 322:231-5. [DOI: 10.1126/science.1163861] [Citation(s) in RCA: 1446] [Impact Index Per Article: 90.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- K.-K. Ni
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - S. Ospelkaus
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - M. H. G. de Miranda
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - A. Pe'er
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - B. Neyenhuis
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - J. J. Zirbel
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - S. Kotochigova
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - P. S. Julienne
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - D. S. Jin
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
| | - J. Ye
- JILA, National Institute of Standards and Technology (NIST) and University of Colorado, Department of Physics, University of Colorado, Boulder, CO 80309–0440, USA
- Physics Department, Temple University, Philadelphia, PA 19122–6082, USA
- Joint Quantum Institute, NIST, and University of Maryland, Gaithersburg, MD 20899–8423, USA
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Wille E, Spiegelhalder FM, Kerner G, Naik D, Trenkwalder A, Hendl G, Schreck F, Grimm R, Tiecke TG, Walraven JTM, Kokkelmans SJJMF, Tiesinga E, Julienne PS. Exploring an ultracold fermi-fermi mixture: interspecies feshbach resonances and scattering properties of 6Li and 40K. Phys Rev Lett 2008; 100:053201. [PMID: 18352370 DOI: 10.1103/physrevlett.100.053201] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Indexed: 05/26/2023]
Abstract
We report on the observation of Feshbach resonances in an ultracold mixture of two fermionic species, (6)Li and (40)K. The experimental data are interpreted using a simple asymptotic bound state model and full coupled channels calculations. This unambiguously assigns the observed resonances in terms of various s- and p-wave molecular states and fully characterizes the ground-state scattering properties in any combination of spin states.
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Affiliation(s)
- E Wille
- Institut für Quantenoptik und Quanteninformation, Osterreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria
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Affiliation(s)
- P. S. Julienne
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27514
| | - L. P. Gary
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, 27514
- Crystal Growth Laborastory, Department of Physics, University of North Carolina, Chapel Hill, North Carolina, 27514
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Zelevinsky T, Boyd MM, Ludlow AD, Ido T, Ye J, Ciuryło R, Naidon P, Julienne PS. Narrow line photoassociation in an optical lattice. Phys Rev Lett 2006; 96:203201. [PMID: 16803171 DOI: 10.1103/physrevlett.96.203201] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2006] [Indexed: 05/10/2023]
Abstract
With ultracold 88Sr in a 1D magic wavelength optical lattice, we performed narrow-line photoassociation spectroscopy near the 1S0 - 3P1 intercombination transition. Nine least-bound vibrational molecular levels associated with the long-range 0u and 1u potential energy surfaces were measured and identified. A simple theoretical model accurately describes the level positions and treats the effects of the lattice confinement on the line shapes. The measured resonance strengths show that optical tuning of the ground state scattering length should be possible without significant atom loss.
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Affiliation(s)
- T Zelevinsky
- JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA
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Bartenstein M, Altmeyer A, Riedl S, Geursen R, Jochim S, Chin C, Denschlag JH, Grimm R, Simoni A, Tiesinga E, Williams CJ, Julienne PS. Precise determination of 6Li cold collision parameters by radio-frequency spectroscopy on weakly bound molecules. Phys Rev Lett 2005; 94:103201. [PMID: 15783485 DOI: 10.1103/physrevlett.94.103201] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2004] [Indexed: 05/24/2023]
Abstract
We employ radio-frequency spectroscopy on weakly bound (6)Li(2) molecules to precisely determine the molecular binding energies and the energy splittings between molecular states for different magnetic fields. These measurements allow us to extract the interaction parameters of ultracold (6)Li atoms based on a multichannel quantum scattering model. We determine the singlet and triplet scattering lengths to be a(s) = 45.167(8)a(0) and a(t) = -2140(18)a(0) (1a(0) = 0.052 917 7 nm), and the positions of the broad Feshbach resonances in the energetically lowest three s-wave scattering channels to be 83.41(15), 69.04(5), and 81.12(10) mT.
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Affiliation(s)
- M Bartenstein
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
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Köhler T, Gasenzer T, Julienne PS, Burnett K. Long-range nature of feshbach molecules in bose-einstein condensates. Phys Rev Lett 2003; 91:230401. [PMID: 14683163 DOI: 10.1103/physrevlett.91.230401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2003] [Indexed: 05/24/2023]
Abstract
We discuss the long-range nature of the molecules produced in recent experiments on molecular Bose-Einstein condensation. The properties of these molecules depend on the full two-body Hamiltonian and not just on the states of the system in the absence of interchannel couplings. The very long-range nature of the state is crucial to the efficiency of production in the experiments. Our many-body treatment of the gas accounts for the full binary physics and describes properly how these molecular condensates can be directly probed.
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Affiliation(s)
- T Köhler
- Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom
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Bergeman T, Julienne PS, Williams CJ, Tiesinga E, Manaa MR, Wang H, Gould PL, Stwalley WC. Predissociations in 0u+ and 1g states of K2. J Chem Phys 2002. [DOI: 10.1063/1.1508375] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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McKenzie C, Hecker Denschlag J, Häffner H, Browaeys A, de Araujo LEE, Fatemi FK, Jones KM, Simsarian JE, Cho D, Simoni A, Tiesinga E, Julienne PS, Helmerson K, Lett PD, Rolston SL, Phillips WD. Photoassociation of sodium in a Bose-Einstein condensate. Phys Rev Lett 2002; 88:120403. [PMID: 11909433 DOI: 10.1103/physrevlett.88.120403] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2001] [Indexed: 05/23/2023]
Abstract
We form ultracold Na2 molecules by single-photon photoassociation of a Bose-Einstein condensate, measuring the photoassociation rate, linewidth, and light shift of the J = 1, v = 135 vibrational level of the A1 Sigma (+)(u) molecular state. The photoassociation rate constant increases linearly with intensity, even where it is predicted that many-body effects might limit the rate. Our observations are in good agreement with a two-body theory having no free parameters.
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Affiliation(s)
- C McKenzie
- National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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Leo PJ, Julienne PS, Mies FH, Williams CJ. Collisional frequency shifts in 133Cs fountain clocks. Phys Rev Lett 2001; 86:3743-3746. [PMID: 11329313 DOI: 10.1103/physrevlett.86.3743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2000] [Indexed: 05/23/2023]
Abstract
We present a theoretical analysis of the density dependent frequency shift in Cs fountain clocks using the highly constrained binary collision model described by Leo et al. [Phys. Rev. Lett. 85, 2721 (2000)]. We predict a reversal in the clock shift at temperatures near 0.08 microK. Our results show that s waves dominate the collision process. However, as a consequence of the large scattering lengths in Cs the clock shift is strongly temperature dependent and does not reach a constant Wigner-law value until temperatures are less than 0.1 nK.
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Affiliation(s)
- P J Leo
- Atomic Physics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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Abstract
We present a theoretical analysis of numerous magnetically tunable Feshbach resonances measured by Chin et al. [preceding Letter, Phys. Rev. Lett. 85, 2717 (2000)] at fields of up to 25 mT. This analysis provides the most accurate characterization of the collisional properties of ground state Cs atoms currently available and clearly shows, in contrast to previous work, that Bose-Einstein condensation of 133Cs cannot be ruled out. The X1Sigma(+)(g) and a(3)Sigma(u) scattering lengths are constrained to (280+/-10)a(0) and (2400+/-100)a(0), respectively ( 1a(0) = 0.052 917 7 nm), and the van der Waals C6 coefficient to 6890+/-35 a.u.(1 a.u. = 0.095 734 5 x10(-24) &Jdot;nm(6)).
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Affiliation(s)
- PJ Leo
- Atomic Physics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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Band YB, Trippenbach M, Burke JP, Julienne PS. Elastic scattering loss of atoms from colliding bose-einstein condensate wave packets. Phys Rev Lett 2000; 84:5462-5465. [PMID: 10990970 DOI: 10.1103/physrevlett.84.5462] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/1999] [Indexed: 05/23/2023]
Abstract
Bragg diffraction of atoms by light waves can create high momentum components in a Bose-Einstein condensate. Collisions between atoms from two distinct momentum wave packets cause elastic scattering that can remove a significant fraction of atoms from the wave packets and cause the formation of a spherical shell of scattered atoms. We develop a slowly varying envelope technique that includes the effects of this loss on the condensate dynamics described by the Gross-Pitaevski equation. Three-dimensional numerical calculations are presented for two experimental situations: passage of a moving daughter condensate through a nonmoving parent condensate, and four-wave mixing of matter waves.
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Affiliation(s)
- YB Band
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel 84105 and National Institute of Standards and Technology, 100 Bureau Drive, Stop 8423, Gaithersburg, Maryland 20899, USA
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Affiliation(s)
- C. J. Williams
- The authors are at the Atomic Physics Division, Stop 8423, National Institute of Standards and Technology, Gaithersburg, MD 20899-8423, USA
| | - P. S. Julienne
- The authors are at the Atomic Physics Division, Stop 8423, National Institute of Standards and Technology, Gaithersburg, MD 20899-8423, USA
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Bohn JL, Julienne PS. Semianalytic treatment of two-color photoassociation spectroscopy and control of cold atoms. Phys Rev A 1996; 54:R4637-R4640. [PMID: 9914136 DOI: 10.1103/physreva.54.r4637] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Burnett K, Julienne PS, Suominen K. Laser-Driven Collisions between Atoms in a Bose-Einstein Condensed Gas. Phys Rev Lett 1996; 77:1416-1419. [PMID: 10063073 DOI: 10.1103/physrevlett.77.1416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Zilio SC, Marcassa L, Muniz S, Horowicz R, Bagnato V, Napolitano R, Weiner J, Julienne PS. Polarization dependence of optical suppression in photoassociative ionization collisions in a sodium magneto-optic trap. Phys Rev Lett 1996; 76:2033-2036. [PMID: 10060589 DOI: 10.1103/physrevlett.76.2033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Suominen K, Burnett K, Julienne PS. Role of off-resonant excitation in cold collisions in a strong laser field. Phys Rev A 1996; 53:R1220-R1223. [PMID: 9913096 DOI: 10.1103/physreva.53.r1220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Suominen K, Burnett K, Julienne PS, Walhout M, Sterr U, Orzel C, Hoogerland M, Rolston SL. Ultracold collisions and optical shielding in metastable xenon. Phys Rev A 1996; 53:1678-1689. [PMID: 9913060 DOI: 10.1103/physreva.53.1678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Solts R, Ben-Reuven A, Julienne PS. Optical collisions in ultracold atom traps: Two-photon distorted-wave theory. Phys Rev A 1995; 52:4029-4042. [PMID: 9912717 DOI: 10.1103/physreva.52.4029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Abstract
Advances in laser cooling of neutral atoms have made possible a new form of high-resolution laser spectroscopy: photoassociation of ultracold atoms. Colliding neutral atoms, confined in a laser trap, are photoassociated to bound excited states of the dimer molecule by absorbing a photon from a tunable laser. The technique can probe long range and “purely long range” molecular states that are difficult or impossible to detect by traditional means and, because of the extremely low energy of the colliding atoms (<1 mK), is capable of high resolution (<0.001 cm-1). The spectra are useful for atomic lifetime measurements, determination of atomic ground-state scattering information, and measurement of curve-crossing probabilities. Theoretical and experimental work in the field, including multiple resonance techniques and photo association line shapes, are reviewed.
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Ritchie NW, Abraham ER, Xiao YY, Bradley CC, Hulet RG, Julienne PS. Trap-loss collisions of ultracold lithium atoms. Phys Rev A 1995; 51:R890-R893. [PMID: 9911776 DOI: 10.1103/physreva.51.r890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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35
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Marcassa L, Muniz S, Zilio S, Bagnato V, Weiner J, Julienne PS, Souminen K. Optical suppression of photoassociative ionization in a magneto-optical trap. Phys Rev Lett 1994; 73:1911-1914. [PMID: 10056920 DOI: 10.1103/physrevlett.73.1911] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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36
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Band YB, Tuvi I, Suominen K, Burnett K, Julienne PS. Loss from magneto-optical traps in strong laser fields. Phys Rev A 1994; 50:R2826-R2829. [PMID: 9911322 DOI: 10.1103/physreva.50.r2826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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37
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Napolitano R, Weiner J, Williams CJ, Julienne PS. Line shapes of high resolution photoassociation spectra of optically cooled atoms. Phys Rev Lett 1994; 73:1352-1355. [PMID: 10056771 DOI: 10.1103/physrevlett.73.1352] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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38
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Suominen K, Holland MJ, Burnett K, Julienne PS. Excited-state survival probabilities for cold collisions in a weak laser field. Phys Rev A 1994; 49:3897-3902. [PMID: 9910687 DOI: 10.1103/physreva.49.3897] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Bagnato V, Marcassa L, Wang Y, Weiner J, Julienne PS, Band YB. Ultracold photoassociative ionization collisions in a magneto-optical trap: The optical-field-intensity dependence in a radiatively dissipative environment. Phys Rev A 1993; 48:R2523-R2526. [PMID: 9910002 DOI: 10.1103/physreva.48.r2523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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41
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Marcassa L, Bagnato V, Wang Y, Tsao C, Weiner J, Dulieu O, Band YB, Julienne PS. Collisional loss rate in a magneto-optical trap for sodium atoms: Light-intensity dependence. Phys Rev A 1993; 47:R4563-R4566. [PMID: 9909563 DOI: 10.1103/physreva.47.r4563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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42
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Wagshul ME, Helmerson K, Lett PD, Rolston SL, Phillips WD, Heather R, Julienne PS. Hyperfine effects on associative ionization of ultracold sodium. Phys Rev Lett 1993; 70:2074-2077. [PMID: 10053464 DOI: 10.1103/physrevlett.70.2074] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Williams CJ, Julienne PS. Mass effects in the theoretical determination of nuclear-spin relaxation rates for atomic hydrogen and deuterium. Phys Rev A 1993; 47:1524-1527. [PMID: 9909082 DOI: 10.1103/physreva.47.1524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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46
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Band YB, Julienne PS. Optical-Bloch-equation method for cold-atom collisions: Cs loss from optical traps. Phys Rev A 1992; 46:330-343. [PMID: 9907868 DOI: 10.1103/physreva.46.330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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48
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Tchang‐Brillet WL, Julienne PS, Robbe J, Letzelter C, Rostas F. A model of the B 1Σ+–D ’ 1Σ+ Rydberg–valence predissociating interaction in the CO molecule. J Chem Phys 1992. [DOI: 10.1063/1.462561] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Band YB, Julienne PS. Complete alignment and orientation of atoms and molecules by stimulated Raman scattering with temporally shifted lasers. J Chem Phys 1992. [DOI: 10.1063/1.461929] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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50
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