5 papers
Biorthogonal-only Floquet Dynamical Quantum Phase Transitions
Jiangrong Wen, Qidong Yuan, Zi-Xiang Hu +1
Non-Hermitian dynamical quantum phase transitions (DQPTs) are intrinsically sensitive to the choice of inner product under nonunitary time evolution. Although the biorthogonal form…
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…
Meissner-Like Currents of Photons in Anomalous Superradiant Phases
Linjun Li, Pengfei Huang, Zi-Xiang Hu +1
We present Meissner-like photon currents in a quantum Rabi zigzag chain under staggered synthetic magnetic fields. The ground state of the Meissner superradiant phase hosts persist…
Monte Carlo approach to quantum work in strongly correlated electron systems
Qian-Xi Zhao, Jian-Jun Dong, Zi-Xiang Hu
We develop a Monte Carlo framework to analyze the statistics of quantum work in correlated electron systems. Using the Ising-Kondo model in heavy fermions as a paradigmatic platfor…
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…