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By adopting a $T$-matrix-based method within the $G_0G$ approximation for the pair susceptibility, we study the effects of the pairing fluctuation on the three-dimensional spin-orbit coupled Fermi gases at finite temperature. The critical…

量子气体 · 物理学 2013-06-11 Lianyi He , Xu-Guang Huang , Hui Hu , Xia-Ji Liu

We present a systematic theoretical study of the BCS-BEC crossover problem in three-dimensional atomic Fermi gases at zero temperature with a spherical spin-orbit coupling which can be generated by a synthetic non-Abelian gauge field…

量子气体 · 物理学 2012-07-13 Lianyi He , Xu-Guang Huang

We review some recent progresses on the study of ultracold Fermi gases with synthetic spin-orbit coupling. In particular, we focus on the pairing superfluidity in these systems at zero temperature. Recent studies have shown that different…

量子气体 · 物理学 2014-10-08 Wei Yi , Wei Zhang , Xiaoling Cui

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbit and Rabi-coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) regimes in three dimensions for tunable…

量子气体 · 物理学 2022-06-22 Philip D. Powell , Gordon Baym , Carlos Sa de Melo

We theoretically analyze the pairing instability of a three-dimensional ultracold atomic Fermi gas towards a Fulde-Ferrell superfluid, in the presence of Rashba spin-orbit coupling and in-plane Zeeman field. We use the standard Thouless…

量子气体 · 物理学 2013-10-15 Xia-Ji Liu

We investigate magnetic properties and strong coupling corrections in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover regime of an ultracold Fermi gas. Within the framework of an extended $T$-matrix theory, we…

量子气体 · 物理学 2015-10-16 Hiroyuki Tajima , Ryo Hanai , Ryota Watanabe , Yoji Ohashi

We investigate the quantum phase transitions of a two-dimensional Bose-Hubbard model in the presence of a Rashba spin-orbit coupling with and without thermal fluctuations. The interplay of single-particle hopping, strength of spin-orbit…

量子气体 · 物理学 2021-12-14 Kuldeep Suthar , Pardeep Kaur , Sandeep Gautam , Dilip Angom

We theoretically investigate strong-coupling properties of an ultracold Fermi gas with an orbital Feshbach resonance (OFR). Including tunable pairing interaction associated with an OFR within the framework of the strong-coupling theory…

量子气体 · 物理学 2018-05-09 Soumita Mondal , Daisuke Inotani , Yoji Ohashi

We investigate the thermodynamic properties of a superfluid Fermi gas subject to Rashba spin-orbit coupling and effective Zeeman field. We adopt a T-matrix scheme that takes beyond-mean-field effects, which are important for strongly…

量子气体 · 物理学 2014-12-17 Zhen Zheng , Han Pu , Xubo Zou , Guangcan Guo

The recent experimental realization of spin-orbit coupled Fermi gases provides a unique opportunity to study the interplay between strong interaction and SOC in a tunable, disorder-free system. We present here precision ab initio numerical…

量子气体 · 物理学 2016-07-21 Hao Shi , Peter Rosenberg , Simone Chiesa , Shiwei Zhang

We briefly review recent progress on ultracold atomic Fermi gases with different types of synthetic spin-orbit coupling, including the one-dimensional (1D) equal weight Rashba-Dresselhaus and two-dimensional (2D) Rasbha spin-orbit…

量子气体 · 物理学 2017-08-23 Jing Zhang , Hui Hu , Xia-Ji Liu , Han Pu

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbit and Rabi coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC) regimes in three dimensions. Spin-orbit…

量子气体 · 物理学 2017-09-22 Philip D Powell , Gordon Baym , C. A. R. Sa de Melo

Strong spin-orbit coupling can have a profound effect on the electronic structure in a metal or semiconductor, particularly for low electron concentrations. We show how, for small values of the Fermi energy compared to the spin-orbit…

介观与纳米尺度物理 · 物理学 2009-11-11 E. Cappelluti , C. Grimaldi , F. Marsiglio

The experimental advances in realizing artificial spin-orbit coupling (SOC) and non-Hermitian potentials in ultracold atomic system open a new avenue for exploring their significant roles in quantum many-body physics. Here, we investigate a…

量子气体 · 物理学 2026-01-12 Pingcheng Zhu , Lihong Zhou , Jianxin Zhong

We study the BCS-Bose Einstein Condensation (BEC) crossover of a three dimensional spin polarized Fermi gas with Rashba spin-orbital-coupling (SOC). At finite temperature, the effects of non-condensed pairs due to the thermal excitation are…

量子气体 · 物理学 2016-06-24 Chang-Yan Wang , Yan He

The realization of spin-orbit coupling (SOC) in ultracold atoms has triggered an intensive exploring of topological superfluids in the degenerate Fermi gases based on mean-field theory, which has not yet been reported in experiments. Here,…

量子气体 · 物理学 2021-09-13 Xiaosen Yang , Ho-Kin Tang , Noah Fan Qi Yuan , Beibing Huang , Guangcan Guo , Ming Gong , Hai-Qing Lin

We theoretically investigate the uniform spin susceptibility $\chi$ in the superfluid phase of an ultracold Fermi gas in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover region. In our previous paper [H.…

量子气体 · 物理学 2016-01-20 H. Tajima , R. Hanai , Y. Ohashi

We investigated effects of a Rashba-type spin-orbit coupling (SOC) on the condensed density and superfluid density tensor of a two-component Fermi gas in the BCS-BEC crossover at zero temperature. In anisotropic three dimensions (3D), we…

量子气体 · 物理学 2015-05-30 Kezhao Zhou , Zhidong Zhang

We investigate magnetic properties and effects of pairing fluctuations in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover regime of an ultracold Fermi gas. Recently, Liu and Hu, and Parish, pointed out that…

量子气体 · 物理学 2015-06-11 Takashi Kashimura , Ryota Watanabe , Yoji Ohashi

We investigate theoretically BEC-BCS crossover physics in the presence of a Rashba spin-orbit coupling in a system of two-component Fermi gas with and without a Zeeman field that breaks the population balance between the two components. A…

量子气体 · 物理学 2012-11-26 Lei Jiang , Xia-Ji Liu , Hui Hu , Han Pu
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