4 papers
Non-Hermiticity of an anomalous superradiant phase
Jun-Ling Wang, You-Qi Lu, Qing-Hu Chen +1
We counterintuitively present a Hermitian squeezing-Dicke model as a minimal setting for non-Hermitian physics in many-body light-matter systems. It enables the realization of a no…
Quantum Criticality from Spectral Collapse in the Two-Photon Rabi Model
Jiong Li, Jun-Ling Wang, Jun-ling Wang +2
Spectral collapse in the two-photon quantum Rabi model (tpQRM) has long been regarded as insufficient to establish quantum criticality because, under generic conditions, the lowest…
Dissipative phase transitions of the Dicke-Ising model
Jun-Ling Wang, Jiong Li, Qing-Hu Chen
The dissipative phase transitions in the open transverse and longitudinal Dicke-Ising model (DIM), which incorporates nearest-neighbor Ising-type spin interactions into the Dicke f…
Emergence of Rich Dissipative Phases in the Anisotropic Quantum Rabi Model Driven by the Term
Jun-Ling Wang, Yi-bo Liu, Qing-Hu Chen
The open anisotropic quantum Rabi model (QRM) is studied in this work, with an explicit term incorporated. It is shown that, in the presence of cavity loss, anisotropy allows…