首页|Dissipation-Driven Superradiant Phase Transition of a Two-Dimensional Bose-Einstein Condensate in a Double Cavity
Dissipation-Driven Superradiant Phase Transition of a Two-Dimensional Bose-Einstein Condensate in a Double Cavity
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
We study superradiant phase transitions in a hybrid system of a two-dimensional Bose-Einstein condensate of atoms and two cavities arranged with a tilt angle.By adjusting the loss rate of cavities,we map out the phase diagram of steady states within a mean field framework.It is found that when the loss rates of the two cavities are different,superradiant transitions may not occur at the same time in the two cavities.A first-order phase transition is observed between the states with only one cavity in superradiance and both in superradiance.In the case that both cavities are superradiant,a net photon current is observed flowing from the cavity with small decay rate to the one with large decay rate.The photon current shows a non-monotonic dependence on the loss rate difference,owing to the competition of photon number difference and cavity field phase difference.Our findings can be realized and detected in experiments.
Bo-Hao Wu、Xin-Xin Yang、Yu Chen、Wei Zhang
展开 >
Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices,Renmin University of China,Beijing 100872,China
Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education),Renmin University of China,Beijing 100872,China
Graduate School of China Academy of Engineering Physics,Beijing 100193,China
Beijing Academy of Quantum Information Sciences,Beijing 100193,China
展开 >
National Key R&D Program of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaNSAF
万方数据
维普
