3 papers
quant-ph2024
Universal quantum Fisher information and simultaneous occurrence of Landau-class and topological-class transitions in non-Hermitian Jaynes-Cummings models
Zu-Jian Ying
Light-matter interactions provide an ideal testground for interplay of critical phenomena, topological transitions, quantum metrology and non-Hermitian physics. We consider two fun…
quant-ph2024
Quantum Fisher information and polaron picture for identification of transition coupling in quantum Rabi model
Zu-Jian Ying, Wen-Long Wang, Bo-Jian Li
The quantum Rabi model (QRM) is a fundamental model for light-matter interactions. A fascinating feature of the QRM is that it manifests a quantum phase transition which is applica…
quant-ph2024
Robust topological feature against non-Hermiticity in Jaynes-Cummings Model
Zu-Jian Ying
The Jaynes-Cummings Model (JCM) is a fundamental model and building block for light-matter interactions, quantum information and quantum computation. We analytically analyze the to…