http://publish.aps.org/ Ultracold Bose and Fermi gases articles published in Physical Review Journals en-us Copyright (c) 2009 The American Physical Society 2009-11-07T12:25:57-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-07T12:25:57-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevLett.103.190401 Author(s): Uttam Shrestha, Juha Javanainen, and Janne Ruostekoski<br/>We study numerically the outcome of the phase separation instability of a dual-species Bose-Einstein condensate in an optical lattice. When only one excitation mode is unstable a bound pair of bright and dark solitonlike structures periodically appears and disappears, whereas for more than one unsta...<br/>[Phys. Rev. Lett. 103, 190401] Published Fri Nov 06, 2009 Uttam Shrestha, Juha Javanainen, and Janne Ruostekoski 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.190401 Phys. Rev. Lett. 103, 190401 text/html article Physical Review Letters 103 19 2009-11-06T00:00:00-05:00 190401 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://link.aps.org/doi/10.1103/PhysRevA.80.052703 Author(s): S. Blatt, J. W. Thomsen, G. K. Campbell, A. D. Ludlow, M. D. Swallows, M. J. Martin, M. M. Boyd, and J. Ye<br/>We investigate the influence of atomic motion on precision Rabi spectroscopy of ultracold fermionic atoms confined in a deep one-dimensional optical lattice. We analyze the spectral components of longitudinal sideband spectra and present a model to extract information about the transverse motion and...<br/>[Phys. Rev. A 80, 052703] Published Fri Nov 06, 2009 S. Blatt, J. W. Thomsen, G. K. Campbell, A. D. Ludlow, M. D. Swallows, M. J. Martin, M. M. Boyd, and J. Ye 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052703 Phys. Rev. A 80, 052703 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 052703 Atomic and molecular collisions and interactions Atomic and molecular collisions and interactions http://link.aps.org/doi/10.1103/PhysRevA.80.053604 Author(s): Yurii Slyusarenko and Andrii Sotnikov<br/>We study the temperature dependence of optical properties of dilute gases of alkali-metal atoms in the state with Bose-Einstein condensates. The description is constructed in the framework of the microscopic approach that is based on the Green’s-functions formalism. We find the expressions for the...<br/>[Phys. Rev. A 80, 053604] Published Fri Nov 06, 2009 Yurii Slyusarenko and Andrii Sotnikov 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053604 Phys. Rev. A 80, 053604 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053604 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053605 Author(s): M. Punk, P. T. Dumitrescu, and W. Zwerger<br/>A single down-spin fermion with an attractive zero-range interaction with a Fermi sea of up-spin fermions forms a polaronic quasiparticle. The associated quasiparticle weight vanishes beyond a critical strength of the attractive interaction, where a many-body bound state is formed. From a variationa...<br/>[Phys. Rev. A 80, 053605] Published Fri Nov 06, 2009 M. Punk, P. T. Dumitrescu, and W. Zwerger 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053605 Phys. Rev. A 80, 053605 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053605 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.051601 Author(s): J. A. M. Huhtamäki, T. P. Simula, M. Kobayashi, and K. Machida<br/>We propose methods to create fractional vortices in the cyclic state of an F=2 spinor Bose-Einstein condensate by manipulating its internal spin structure using pulsed microwave and laser fields. The stability of such vortices is studied as a function of the rotation frequency of the confining harmo...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 80, 051601] Published Wed Nov 04, 2009 J. A. M. Huhtamäki, T. P. Simula, M. Kobayashi, and K. Machida 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.051601 Phys. Rev. A 80, 051601 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 051601 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053603 Author(s): Qiongtao Xie (谢琼涛) and Wenhua Hai (海文华)<br/>We investigate nonlinear Floquet states and quasienergies of a Bose-Einstein condensate in a double-well potential subject to a high-frequency driving field. A multiple time scale method is used to obtain the nonlinear Floquet states and quasienergies in both weak and strong nonlinearity regimes. It...<br/>[Phys. Rev. A 80, 053603] Published Wed Nov 04, 2009 Qiongtao Xie (谢琼涛) and Wenhua Hai (海文华) 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053603 Phys. Rev. A 80, 053603 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 053603 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevLett.103.195301 Author(s): K. B. Gubbels, J. E. Baarsma, and H. T. C. Stoof<br/>We consider a strongly interacting ^{6} Li- ^{40} K mixture, which is imbalanced both in the masses and the densities of the two fermionic species. At present, it is the experimentalist’s favorite for reaching the superfluid regime. We construct an effective thermodynamic potential that leads to e...<br/>[Phys. Rev. Lett. 103, 195301] Published Tue Nov 03, 2009 K. B. Gubbels, J. E. Baarsma, and H. T. C. Stoof 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.195301 Phys. Rev. Lett. 103, 195301 text/html article Physical Review Letters 103 19 2009-11-03T00:00:00-05:00 195301 Condensed Matter: Structure, etc. Condensed Matter: Structure, etc. http://link.aps.org/doi/10.1103/PhysRevA.80.053602 Author(s): Gentaro Watanabe, F. Dalfovo, F. Piazza, L. P. Pitaevskii, and S. Stringari<br/>We investigate the problem of an ultracold atomic gas in the superfluid phase flowing in the presence of a potential barrier or a periodic potential. We use a hydrodynamic scheme in the local density approximation (LDA) to obtain an analytic expression for the critical current as a function of the b...<br/>[Phys. Rev. A 80, 053602] Published Tue Nov 03, 2009 Gentaro Watanabe, F. Dalfovo, F. Piazza, L. P. Pitaevskii, and S. Stringari 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053602 Phys. Rev. A 80, 053602 text/html article Physical Review A 80 5 2009-11-03T00:00:00-05:00 053602 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053601 Author(s): E. Taylor, H. Hu, X.-J. Liu, L. P. Pitaevskii, A. Griffin, and S. Stringari<br/>Using a variational approach, we solve the equations of two-fluid hydrodynamics for a uniform and trapped Fermi gas at unitarity. In the uniform case, we find that the first and second sound modes are remarkably similar to those in superfluid helium, a consequence of strong interactions. In the pres...<br/>[Phys. Rev. A 80, 053601] Published Mon Nov 02, 2009 E. Taylor, H. Hu, X.-J. Liu, L. P. Pitaevskii, A. Griffin, and S. Stringari 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053601 Phys. Rev. A 80, 053601 text/html article Physical Review A 80 5 2009-11-02T00:00:00-05:00 053601 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043629 Author(s): Ying Hu (胡颖), Zhaoxin Liang (梁兆新), and Bambi Hu (胡斑比)<br/>We investigate a Bose-Einstein condensate (BEC) trapped in a two-dimensional optical lattice in the presence of weak disorder within the framework of the Bogoliubov theory. In particular, we analyze the combined effects of disorder and an optical lattice on quantum fluctuations and superfluid densit...<br/>[Phys. Rev. A 80, 043629] Published Fri Oct 30, 2009 Ying Hu (胡颖), Zhaoxin Liang (梁兆新), and Bambi Hu (胡斑比) 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043629 Phys. Rev. A 80, 043629 text/html article Physical Review A 80 4 2009-10-30T00:00:00-04:00 043629 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.045603 Author(s): R. N. Bisset and P. B. Blakie<br/>We investigate the accuracy of two mean-field theories of the trapped two-dimensional Bose gas at predicting transition region properties by comparison to nonperturbative classical field calculations. To make these comparisons we examine the density profiles and the predictions for the Berezinskii-K...<br/>[Phys. Rev. A 80, 045603] Published Fri Oct 30, 2009 R. N. Bisset and P. B. Blakie 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.045603 Phys. Rev. A 80, 045603 text/html article Physical Review A 80 4 2009-10-30T00:00:00-04:00 045603 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043628 Author(s): G. Ferrini, A. Minguzzi, and F. W. J. Hekking<br/>We study a Bose Josephson junction realized with a double-well potential. We propose a strategy to observe the coherent superpositions of phase states occurring during the time evolution after a sudden rise of the barrier separating the two wells. We show that their phase content can be obtained by ...<br/>[Phys. Rev. A 80, 043628] Published Thu Oct 29, 2009 G. Ferrini, A. Minguzzi, and F. W. J. Hekking 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043628 Phys. Rev. A 80, 043628 text/html article Physical Review A 80 4 2009-10-29T00:00:00-04:00 043628 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043626 Author(s): Gabriel Lemarié, Julien Chabé, Pascal Szriftgiser, Jean Claude Garreau, Benoît Grémaud, and Dominique Delande<br/>Using a cold atomic gas exposed to laser pulses—a realization of the chaotic quasiperiodic kicked rotor with three incommensurate frequencies—we study experimentally and theoretically the Anderson metal-insulator transition in three dimensions. Sensitive measurements of the atomic wave function ...<br/>[Phys. Rev. A 80, 043626] Published Wed Oct 28, 2009 Gabriel Lemarié, Julien Chabé, Pascal Szriftgiser, Jean Claude Garreau, Benoît Grémaud, and Dominique Delande 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043626 Phys. Rev. A 80, 043626 text/html article Physical Review A 80 4 2009-10-28T00:00:00-04:00 043626 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043627 Author(s): N. Dupuis<br/>In a Bose superfluid, the coupling between transverse (phase) and longitudinal fluctuations leads to a divergence of the longitudinal correlation function, which is responsible for the occurrence of infrared divergences in the perturbation theory and the breakdown of the Bogoliubov approximation. We...<br/>[Phys. Rev. A 80, 043627] Published Wed Oct 28, 2009 N. Dupuis 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043627 Phys. Rev. A 80, 043627 text/html article Physical Review A 80 4 2009-10-28T00:00:00-04:00 043627 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043624 Author(s): Ryota Watanabe and Masatoshi Imada<br/>We study two models realized by two-component Fermi gases loaded in optical lattices. We clarify that multiband effects inevitably caused by the optical lattices generate a rich structure, when the systems crossover from the region of weakly bound molecular bosons to the region of strongly bound ato...<br/>[Phys. Rev. A 80, 043624] Published Tue Oct 27, 2009 Ryota Watanabe and Masatoshi Imada 2009-10-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043624 Phys. Rev. A 80, 043624 text/html article Physical Review A 80 4 2009-10-27T00:00:00-04:00 043624 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043625 Author(s): M. Thøgersen, N. T. Zinner, and A. S. Jensen<br/>We consider the ground state of a harmonically trapped Bose-Einstein condensate within the Gross-Pitaevskii theory including the effective-range corrections for a two-body zero-range potential. The resulting nonlinear Schrödinger equation is solved analytically in the Thomas-Fermi approximation neg...<br/>[Phys. Rev. A 80, 043625] Published Tue Oct 27, 2009 M. Thøgersen, N. T. Zinner, and A. S. Jensen 2009-10-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043625 Phys. Rev. A 80, 043625 text/html article Physical Review A 80 4 2009-10-27T00:00:00-04:00 043625 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043622 Author(s): B. Juliá-Díaz, M. Melé-Messeguer, M. Guilleumas, and A. Polls<br/>The dynamics of an F=1 spinor condensate in a two-well potential is studied within the framework of the Gross-Pitaevskii equation. We derive two-mode equations relating the population imbalances, the phase differences among the condensates at each side of the barrier and the time evolution of the di...<br/>[Phys. Rev. A 80, 043622] Published Mon Oct 26, 2009 B. Juliá-Díaz, M. Melé-Messeguer, M. Guilleumas, and A. Polls 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043622 Phys. Rev. A 80, 043622 text/html article Physical Review A 80 4 2009-10-26T00:00:00-04:00 043622 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043623 Author(s): J. M. Zhang, S. Cui, H. Jing, D. L. Zhou, and W. M. Liu<br/>We propose to probe the quantum ground state of a spin-1 Bose-Einstein condensate with the transmission spectra of an optical cavity. By choosing a circularly polarized cavity mode with an appropriate frequency, we can realize coupling between the cavity mode and the magnetization of the condensate....<br/>[Phys. Rev. A 80, 043623] Published Mon Oct 26, 2009 J. M. Zhang, S. Cui, H. Jing, D. L. Zhou, and W. M. Liu 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043623 Phys. Rev. A 80, 043623 text/html article Physical Review A 80 4 2009-10-26T00:00:00-04:00 043623 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevLett.103.170404 Author(s): J. Ruostekoski, C. J. Foot, and A. B. Deb<br/>We propose a method of using off-resonant light scattering to measure the temperature of fermionic atoms tightly confined in a two-dimensional optical-lattice potential. We show that fluctuations of the intensity in the far-field diffraction pattern arising from thermal correlations of the atoms can...<br/>[Phys. Rev. Lett. 103, 170404] Published Fri Oct 23, 2009 J. Ruostekoski, C. J. Foot, and A. B. Deb 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.170404 Phys. Rev. Lett. 103, 170404 text/html article Physical Review Letters 103 17 2009-10-23T00:00:00-04:00 170404 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://link.aps.org/doi/10.1103/PhysRevA.80.043620 Author(s): ZhiFang Feng, WeiDong Li, LiRong Wang, LianTuan Xiao, and SuoTang Jia<br/>The optimum conditions for producing Cs_{2} molecular condensates from Cs atomic condensates with high transfer efficiency by stimulated Raman adiabatic passage are presented. Under the extended “two-photon” resonance condition, including the two-photon process, the mean-field correction, and th...<br/>[Phys. Rev. A 80, 043620] Published Wed Oct 21, 2009 ZhiFang Feng, WeiDong Li, LiRong Wang, LianTuan Xiao, and SuoTang Jia 2009-10-21T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043620 Phys. Rev. A 80, 043620 text/html article Physical Review A 80 4 2009-10-21T00:00:00-04:00 043620 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043621 Author(s): Chi-Yong Lin, Da-Shin Lee, and Ray J. Rivers<br/>In this paper, we construct an effective field theory for a condensate of cold Fermi atoms whose scattering is controlled by a narrow Feshbach resonance. We show how, from first principles, it permits a hydrodynamic description of the BEC-BCS crossover from which the equation of state, intimately re...<br/>[Phys. Rev. A 80, 043621] Published Wed Oct 21, 2009 Chi-Yong Lin, Da-Shin Lee, and Ray J. Rivers 2009-10-21T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043621 Phys. Rev. A 80, 043621 text/html article Physical Review A 80 4 2009-10-21T00:00:00-04:00 043621 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevLett.103.170402 Author(s): S. Nascimbène, N. Navon, K. J. Jiang, L. Tarruell, M. Teichmann, J. McKeever, F. Chevy, and C. Salomon<br/>We investigate the low-lying compression modes of a unitary Fermi gas with imbalanced spin populations. For low polarization, the strong coupling between the two spin components leads to a hydrodynamic behavior of the cloud. For large population imbalance we observe a decoupling of the oscillations ...<br/>[Phys. Rev. Lett. 103, 170402] Published Tue Oct 20, 2009 S. Nascimbène, N. Navon, K. J. Jiang, L. Tarruell, M. Teichmann, J. McKeever, F. Chevy, and C. Salomon 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.170402 Phys. Rev. Lett. 103, 170402 text/html article Physical Review Letters 103 17 2009-10-20T00:00:00-04:00 170402 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://link.aps.org/doi/10.1103/PhysRevA.80.043617 Author(s): Ai-Xia Zhang and Ju-Kui Xue<br/>The sound waves, the stability of Bloch waves, the Bloch oscillation, and the self-trapping phenomenon in interacting two-component Fermi gases throughout the BEC-BCS crossover in one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) optical lattices are discussed in detail. Within ...<br/>[Phys. Rev. A 80, 043617] Published Tue Oct 20, 2009 Ai-Xia Zhang and Ju-Kui Xue 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043617 Phys. Rev. A 80, 043617 text/html article Physical Review A 80 4 2009-10-20T00:00:00-04:00 043617 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043618 Author(s): Moumita Gupta and Krishna Rai Dastidar<br/>We study the dynamics of the atomic and molecular Bose-Einstein condensates (BECs) of ^{87} Rb in a spherically symmetric trap coupled by stimulated Raman photoassociation process. Considering the higher order nonlinearity in the atom-atom interaction we analyze the dynamics of the system using coup...<br/>[Phys. Rev. A 80, 043618] Published Tue Oct 20, 2009 Moumita Gupta and Krishna Rai Dastidar 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043618 Phys. Rev. A 80, 043618 text/html article Physical Review A 80 4 2009-10-20T00:00:00-04:00 043618 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043619 Author(s): Christopher P. Search, J. Mauricio Campuzano, and Marko Zivkovic<br/>We explore the quantum dynamics of photoassociation of Bose-Einstein condensed atoms into molecules using an optical cavity field. Inside of an optical resonator, photoassociation of quantum degenerate atoms involves the interaction of three coupled quantum fields for the atoms, molecules, and the p...<br/>[Phys. Rev. A 80, 043619] Published Tue Oct 20, 2009 Christopher P. Search, J. Mauricio Campuzano, and Marko Zivkovic 2009-10-20T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043619 Phys. Rev. A 80, 043619 text/html article Physical Review A 80 4 2009-10-20T00:00:00-04:00 043619 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevLett.103.170401 Author(s): R. A. Duine and H. T. C. Stoof<br/>We show how time-dependent magnetic fields lead to spin motive forces and spin drag in a spinor Bose gas. We propose to observe these effects in a toroidal trap and analyze this particular proposal in some detail. In the linear-response regime we define a transport coefficient that is analogous to t...<br/><img src="http://prola.aps.org/graphics/prlsugg30x30.gif" width="30" height="30" alt="PRL Editors' Suggestion"/><br/>[Phys. Rev. Lett. 103, 170401] Published Mon Oct 19, 2009 R. A. Duine and H. T. C. Stoof 2009-10-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.170401 Phys. Rev. Lett. 103, 170401 text/html article Physical Review Letters 103 17 2009-10-19T00:00:00-04:00 170401 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://link.aps.org/doi/10.1103/PhysRevA.80.041604 Author(s): P. Azaria, S. Capponi, and P. Lecheminant<br/>We investigate the effect of the anisotropy between the s -wave scattering lengths of a three-component atomic Fermi gas loaded into a one-dimensional optical lattice. We find four different phases which support trionic instabilities made of bound states of three fermions. These phases distinguish t...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 80, 041604] Published Mon Oct 19, 2009 P. Azaria, S. Capponi, and P. Lecheminant 2009-10-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.041604 Phys. Rev. A 80, 041604 text/html article Physical Review A 80 4 2009-10-19T00:00:00-04:00 041604 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.041605 Author(s): G. L. Gattobigio, A. Couvert, M. Jeppesen, R. Mathevet, and D. Guéry-Odelin<br/>We have experimentally demonstrated a high level of control of the mode populations of guided-atom lasers (GALs) by showing that the entropies per particle of an optically GAL and the one of the trapped Bose-Einstein condensate (BEC) from which it has been produced are the same. The BEC is prepared ...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 80, 041605] Published Mon Oct 19, 2009 G. L. Gattobigio, A. Couvert, M. Jeppesen, R. Mathevet, and D. Guéry-Odelin 2009-10-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.041605 Phys. Rev. A 80, 041605 text/html article Physical Review A 80 4 2009-10-19T00:00:00-04:00 041605 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.043411 Author(s): Kean Loon Lee (李健伦), Benoît Grémaud, Rui Han (韩睿), Berthold-Georg Englert, and Christian Miniatura<br/>Some important features of the graphene physics can be reproduced by loading ultracold fermionic atoms in a two-dimensional optical lattice with honeycomb symmetry and we address here its experimental feasibility. We analyze in great detail the optical lattice generated by the coherent superposition...<br/>[Phys. Rev. A 80, 043411] Published Mon Oct 19, 2009 Kean Loon Lee (李健伦), Benoît Grémaud, Rui Han (韩睿), Berthold-Georg Englert, and Christian Miniatura 2009-10-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043411 Phys. Rev. A 80, 043411 text/html article Physical Review A 80 4 2009-10-19T00:00:00-04:00 043411 Atomic and molecular processes in external fields, including interactions with strong fields and short pulses Atomic and molecular processes in external fields, including interactions with strong fields and short pulses http://link.aps.org/doi/10.1103/PhysRevA.80.043613 Author(s): Emiko Arahata and Tetsuro Nikuni<br/>We study sound propagation in a uniform superfluid gas of Fermi atoms in the unitary limit. The existence of normal and superfluid components leads to appearance of two sound modes in the collisional regime, referred to as first and second sounds. The second sound is of particular interest as it is ...<br/>[Phys. Rev. A 80, 043613] Published Mon Oct 19, 2009 Emiko Arahata and Tetsuro Nikuni 2009-10-19T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.043613 Phys. Rev. A 80, 043613 text/html article Physical Review A 80 4 2009-10-19T00:00:00-04:00 043613 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules