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quant-ph2021★ 4 cited
Fate of symmetry protected coherence in open quantum system
Tian-Shu Deng, Lei Pan
We investigate the fate of coherence in the dynamical evolution of a symmetry protected quantum system. Under the formalism of system-plus-bath for open quantum system, the anti-un…
quant-ph2020★ 216 cited
Observation of non-Bloch parity-time symmetry and exceptional points
Lei Xiao, Tianshu Deng, Kunkun Wang +3
Parity-time (PT)-symmetric Hamiltonians have widespread significance in non-Hermitian physics. A PT-symmetric Hamiltonian can exhibit distinct phases with either real or complex ei…