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quant-ph2026
Generating function for Hermitian and non-Hermitian models
Hua-Yu Bai, Yang Chen, Guang-Can Guo +2
It is well known that Hermitian and non-Hermitian models exhibit distinct physics and require different theoretical tools. In this work, we propose a unified generating-function fr…
quant-ph2025
Unilateral Criticality and Phase Transition in the Cavity-Ising Model
Zeyu Rao, Xiaoshui Lin, Xiwang Luo +3
Superradiant phase transitions from cavity light-matter coupling have been widely explored across platforms. Here, we report a unilateral critical endpoint (UCEP) and a tricritical…
quant-ph2025
Uncovering the origin of bound state in the continuum
Zeyu Rao, Changling Zou, Yang Chen +2
Bound state in the continuum (BIC) and quasi-BIC represent a remarkable class of wave functions that disobey conventional intuition by exhibiting spatially localized modes embedded…