Dynamic phase transitions of a driven Ising chain in a dissipative cavity

作者：Luo, Xi-Wang; Zhang, Yu-Na; Zhou, Xingxiang^*; Guo, Guang-Can; Zhou, Zheng-Wei^*

来源：Physical Review A, 2016, 94(5): 053809.

DOI：10.1103/PhysRevA.94.053809

• DICKE-MODEL
• QUANTUM

We study the nonequilibrium quantum phase transition of an Ising chain in a dissipative cavity driven by an external transverse light field. When driving and dissipation are in balance, the system can reach a nonequilibrium steady state which undergoes a superradiant phase transition as the driving strength increases. Interestingly, the superradiant field changes the effective bias of the Ising chain in return and drives its own transition between the ferromagnetic and the paramagnetic phase. We study the rich physics in this system with sophisticated behavior and investigate important issues in its dynamics such as the stability of the system and criticality of the phase transition.

• 出版日期2016-11-7
• 单位中国科学技术大学