Superradiant Phase Transition in a Superconducting Circuit in Thermal Equilibrium
Superradiant Phase Transition in a Superconducting Circuit in Thermal Equilibrium
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DOI：
10.1103/physrevlett.117.173601
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发表时间：
2016-10-20
影响因子：
8.6
通讯作者：
Nakamura, Yasunobu
中科院分区：
文献类型：
--
作者：
Bamba, Motoaki;Inomata, Kunihiro;Nakamura, Yasunobu
我们提出了一个超导电路，显示了超辐射相变（SRPT）的热平衡。在无限多人工原子的限制下，解析地证实了SRPT的存在。我们还进行了数值对角化的哈密顿与有限数量的原子，并观察到渐近行为接近无限的限制，作为原子数量的增加。SRPT也可以在经典分析中直观地解释。
We propose a superconducting circuit that shows a superradiant phase transition (SRPT) in thermal equilibrium. The existence of the SRPT is confirmed analytically in the limit of an infinite number of artificial atoms. We also perform a numerical diagonalization of the Hamiltonian with a finite number of atoms and observe an asymptotic behavior approaching the infinite limit as the number of atoms increases. The SRPT can also be interpreted intuitively in a classical analysis.