Condensation of bosons with Rashba-Dresselhaus spin-orbit coupling

17th International Conference on Recent Progress in Many-Body Theories

Baym, Gordon^1 ; Ozawa, Tomoki^1,2

Department of Physics, University of Illinois, 1110 W. Green Street, Urbana, IL 61801, United States^1

INO-CNR BEC Center and Dipartimento di Fisica, Universitá di Trento, I-38123 Povo, Italy^2

关键词: Bose condensates;    Condensed phasis;    Critical temperatures;    Effective density of state;    Finite temperatures;    Physical features;    Rashba coupling;    Spin-orbit couplings;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/529/1/012006/pdf
DOI  :  10.1088/1742-6596/529/1/012006

来源: IOP

【 摘 要 】

Cold atomic Bose-Einstein systems in the presence of simulated Rashba- Dresselhaus spin-orbit coupling exhibit novel physical features. With pure in-plane Rashba coupling the system is predicted in Bogoliubov-Hartree-Fock to have a stable Bose condensate below a critical temperature, even though the effective density of states is two-dimensional. In addition the system has a normal state at all temperatures. We review here the new physics when the system has such spin-orbit coupling, and discuss the nature of the finite temperature condensation phase transition from the normal to condensed phases.