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quant-ph2026
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…
quant-ph2026
Anomalous topological superradiant phases
You-Qi Lu, Yu-Yu Zhang, Zi-Xiang Hu
We present a novel set of light-matter topology realized by implementing a finite-component quantum Rabi array with a photonic analog of the Su-Schrieffer-Heeger (SSH) configuratio…
quant-ph2024
Quantum tricriticality and universal scaling in a tricritical quantum Rabi system
You-Qi Lu, Yu-Yu Zhang
Quantum tricriticality, a unique form of high-order criticality, is expected to exhibit fascinating features including unconventional critical exponents and universal scaling laws.…