2016年10月

Superradiant Phase Transition in a Superconducting Circuit in Thermal Equilibrium

PHYSICAL REVIEW LETTERS
• Motoaki Bamba
• ,
• Kunihiro Inomata
• ,
• Yasunobu Nakamura

117
17

DOI
10.1103/PhysRevLett.117.173601

AMER PHYSICAL SOC

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.

Web of Science ® 被引用回数 : 45

リンク情報
DOI
https://doi.org/10.1103/PhysRevLett.117.173601
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201702203311063033
arXiv
http://arxiv.org/abs/arXiv:1605.01124
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/27824479
Web of Science