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相关论文: Rotating a Rashba-coupled Fermi gas in two dimensi…

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The problem of scattering of the two-dimensional electron gas on the lateral one-dimensional superlattice both having different strengths of Rashba spin-orbit coupling is investigated. The scattering is considered for all the electron…

介观与纳米尺度物理 · 物理学 2009-11-11 D. V. Khomitsky

We study the expansion of a rotating, superfluid Fermi gas. The presence and absence of vortices in the rotating gas is used to distinguish superfluid and normal parts of the expanding cloud. We find that the superfluid pairs survive during…

超导电性 · 物理学 2009-11-11 C. H. Schunck , M. W. Zwierlein , A. Schirotzek , W. Ketterle

We show that an interesting of pairing occurs for spin-imbalanced Fermi gases under a specific experimental condition---the spin up and spin down Fermi levels lying within the $p_x$ and $s$ orbital bands of an optical lattice, respectively.…

量子气体 · 物理学 2014-11-20 Zixu Zhang , Hsiang-Hsuan Hung , Chiu Man Ho , Erhai Zhao , W. Vincent Liu

We study the fate of a two-dimensional system of interacting fermions with Rashba spin-orbit coupling in the dilute limit. The interactions are strongly renormalized at low densities, and give rise to various fermionic liquid crystalline…

强关联电子 · 物理学 2014-12-12 Jonathan Ruhman , Erez Berg

We theoretically investigate normal-state properties of an ultracold Fermi gas with an orbital Feshbach resonance (OFR). Recently, OFR has attracted much attention as a promising pairing mechanism to realize a superfluid 173Yb Fermi gas.…

量子气体 · 物理学 2018-08-22 Soumita Mondal , Daisuke Inotani , Yoji Ohashi

This work reports the theoretical investigation into the mechanism underpinning the anomalous Josephson effect. The prototypical system we study is a ballistic two-dimensional junction containing a two-dimensional Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2024-03-11 Ross D. Monaghan , Giuseppe C. Tettamanzi

We study spin dynamics in a two-dimensional electron gas with a pure gauge non-Abelian spin-orbit field, for which systems with balanced Rashba and Dresselhaus spin-orbit couplings, and the (110)-axis grown GaAs quantum wells are typical…

介观与纳米尺度物理 · 物理学 2010-10-20 I. V. Tokatly , E. Ya. Sherman

We consider a trapped atomic system in the presence of spatially varying laser fields. The laser-atom interaction generates a pseudospin degree of freedom (referred to simply as spin) and leads to an effective spin-orbit coupling for the…

其他凝聚态物理 · 物理学 2007-12-18 Tudor D. Stanescu , Chuanwei Zhang , Victor Galitski

We study the breathing mode frequencies of a rotating Fermi gas trapped in a harmonic plus radial quartic potential. We find that as the radial anharmonicity increases, the lowest order radial mode frequency increases while the next lowest…

其他凝聚态物理 · 物理学 2009-11-13 Theja N. De Silva

We analyze the effects of in- and out-of-plane Zeeman fields on the BCS-BEC evolution of a Fermi gas with equal Rashba-Dresselhaus (ERD) spin-orbit coupling (SOC). We show that the ground state of the system involves novel gapless…

量子气体 · 物理学 2013-06-25 M. Iskin , A. L. Subasi

Spin-orbital-angular-momentum (SOAM) coupling has been realized in recent experiments of Bose-Einstein condensates [Chen et al., Phys. Rev. Lett. 121, 113204 (2018) and Zhang et al., Phys. Rev. Lett. 122, 110402 (2019)], where the orbital…

量子气体 · 物理学 2021-01-06 Ke-Ji Chen , Fan Wu , Shi-Guo Peng , Wei Yi , Lianyi He

The two-dimensional spin-imbalanced Fermi gas subject to s-wave pairing and spin-orbit coupling is considered a promising platform for realizing a topological chiral-p-wave superfluid. In the BCS limit of s-wave pairing, i.e., when Cooper…

量子气体 · 物理学 2022-11-18 K. Thompson , U. Zülicke , J. Brand

Motivated by the recent experiment realizing bidirectional spin-orbit-coupled Bose-Einstein condensates (BEC), we theoretically explore the properties of repulsive fermions in the two-dimensional (2D) optical lattice with such non-Abelian…

强关联电子 · 物理学 2020-01-22 Yi-Xiang Wang , Fuxiang Li

We study the nonequilibrium steady state of a two dimensional Coulomb gas under the action of an anisotropic harmonic trapping potential along with a non-conservative rotational force. In the case without rotation, the equilibrium (zero…

统计力学 · 物理学 2025-09-15 David S. Dean , Rashed Aljasmi , Satya N. Majumdar

Intensive theoretical studies have recently predicted that a Bose-Einstein condensate will exhibit a variety of novel properties if spin-orbit coupling is present. However, an unambiguous fact has also been pointed out: Rashba coupling…

量子气体 · 物理学 2015-06-11 Qi Zhou , Xiaoling Cui

We examine the superfluid and collapse instabilities of a quasi two-dimensional gas of dipolar fermions aligned by an orientable external field. It is shown that the interplay between the anisotropy of the dipolar interaction, the geometry…

其他凝聚态物理 · 物理学 2008-12-11 G. M. Bruun , E. Taylor

We consider the quasi-2D two-component Bose-Einstein condensates with Rashba spin-orbit (SO) coupling in a rotating trap. An external Zeeman term favoring spin polarization along the radial direction is also considered, which has the same…

量子气体 · 物理学 2012-04-27 Xiang-Fa Zhou , Jing Zhou , Congjun Wu

We investigate the stabilization of topological Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phases, with a specific emphasis on the intraband FFLO phase, in a one-dimensional (1D) Fermi gas subjected to an external magnetic field. This research…

量子气体 · 物理学 2025-12-08 Hamid Mosadeq , Mohammad-Hossein Zare , Reza Asgari

We study the miscibility properties and ground state phases of two-component spin-orbit (SO) coupled Bose-Einstein condensates (BECs) in a harmonic trap with strong axial confinement. By numerically solving the coupled Gross-Pitaevskii…

We address the important question of how to characterize the normal state of fermionic superfluids under the influence of a strong effective magnetic field, implemented through rapid rotation or novel artificial field techniques. We…

量子气体 · 物理学 2013-10-25 Peter Scherpelz , Dan Wulin , K. Levin , A. K. Rajagopal