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quant-ph2021★ 3 cited
Quantum phases transition revealed by the exceptional point in Hopfield-Bogoliubov matrix
Dong Xie, Chunling Xu, An Min Wang
We use the exceptional point in Hopfield-Bogoliubov matrix to find the phase transition points in the bosonic system. In many previous jobs, the excitation energy vanished at the c…
quant-ph2021★ 12 cited
Quantum Thermometry with a Dissipative Quantum Rabi System
Dong Xie, Chunling Xu, An Min Wang
Dissipative quantum Rabi System, a finite-component system composed of a single two-level atom interacting with an optical cavity field mode, exhibits a quantum phase transition, w…