2 papers
quant-ph2025
Higher-order exceptional lines in a non-Hermitian JaynesCummings triangle
Hao Chen, Xiao Qin, Jian-Jun Dong +2
Higher-order exceptional points (EPs) in non-Hermitian systems showcase diverse physical phenomena but require more parameter space freedom or symmetries. It leads to a challenge f…
quant-ph2024
Quantum fluctuations and unusual critical exponents in a quantum Rabi Triangle
Xiao Qin, Yu-Yu Zhang
Quantum fluctuations of a quantum Rabi triangle are studied using an analytical approach beyond the mean-field theory. By applying an artificial magnetic field among three cavities…