# BCS-BEC crossover and quantum phase transition in an ultracold Fermi gas under spin-orbit coupling

@article{Wu2014BCSBECCA, title={BCS-BEC crossover and quantum phase transition in an ultracold Fermi gas under spin-orbit coupling}, author={Fan Wu and Ren-jie Zhang and Tianshu Deng and Wei Zhang and Wei Yi and Guangcan Guo}, journal={Physical Review A}, year={2014}, volume={89}, pages={063610} }

In this work, we study the BCS-BEC crossover and quantum phase transition in a Fermi gas under Rashba spin-orbit coupling close to a Feshbach resonance. By adopting a two-channel model, we take into account of the closed channel molecules, and show that combined with spin-orbit coupling, a finite background scattering in the open channel can lead to two branches of solution for both the two-body and the many-body ground states. The branching of the two-body bound state solution originates from…

## 4 Citations

Bloch bound state of spin-orbit-coupled fermions in an optical lattice

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Understanding fundamentals of few-body physics provides an interesting bottom-up approach for the clarification of many-body properties. The remarkable experimental progress in realizing spin-orbit…

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Abstract
We investigate the influence of a synthetic gauge field on the BCS-BEC crossover in a relativistic superfluid. The configuration of the gauge field generates an effective Rashba spin-orbit…

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AbstractWe propose a new functional renormalization group (RG) strategy to investigate the
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- 2016

One of the most dynamic directions in ultracold atomic gas research is the study of low-dimensional physics in quasi-low-dimensional geometries, where atoms are confined in strongly anisotropic…

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