Bethe-Ansatz专家管习文来我组作系列报告[2017-11-10]
Topological Phase Transition and Charge Pumping in a One-Dimensional Periodically Driven Optical Lattice[2017-07-30]
山西大学2017研究生毕业典礼[2017-06-25]
CAT小组刘彦霞同学通过博士学位论文答辩[2017-06-03]
王利CSC公派访学结束回所工作[2017-05-22]
尹相国回到冷原子理论研究组工作[2017-04-13]
Spectroscopy and spin dynamics for strongly interacting few spinor bosons in one-dimensional traps[2017-04-06]
Collective excitation of a trapped Bose-Einstein condensate with spin-orbit coupling [2017-03-16]
Quantum walks in the commensurate off-diagonal AAH model[2017-02-03]
刘娜获得2016硕士国家奖学金[2017-01-12]

发布者： admin 发布时间：2016-04-01

　　

近日，山西大学量子光学与光量子器件国家重点实验室光电研究所张靖教授研究小组在《Nature Physics》上发表论文《人造二维自旋轨道耦合在超冷费米气体中的实验实现》(Experimental realization of two-dimensional synthetic spin-orbit coupling in ultracold Fermi gases)，引起国内外广泛关注。

Abstract: Spin–orbit coupling (SOC) is central to many physical phenomena, including fine structures of atomic spectra and topological phases in ultracold atoms.Whereas, in general,SOCis fixed in a system, laser–atom interaction provides a means to create and control synthetic SOC in ultracold atoms. Despite significant experimental progress in this area, two-dimensional (2D) synthetic SOC, which is crucial for exploring two- and threedimensional topological phases, is lacking. Here, we report the experimental realization of 2D SOC in ultracold 40K Fermi gases using three lasers, each of which dresses one atomic hyperfine spin state. Through spin-injection radiofrequency(rf) spectroscopy, we probe the spin-resolved energy dispersions of the dressed atoms, and observe a highly controllable Dirac point created by the 2D SOC. These results constitute a step towards the realization of new topological states of matter.