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quant-ph2022★ 31 cited
Continuum of Bound States in a Non-Hermitian Model
Qiang Wang, Changyan Zhu, Xu Zheng +3
In a Hermitian system, bound states must have quantized energies, whereas extended states can form a continuum. We demonstrate how this principle fails for non-Hermitian systems, b…
quant-ph2021★ 34 cited
Giant Enhancement of Unconventional Photon Blockade in a Dimer Chain
You Wang, W. Verstraelen, Baile Zhang +2
Unconventional photon blockade refers to the suppression of multi-photon states in weakly nonlinear optical resonators via the destructive interference of different excitation path…