Dynamical quantum phase transitions in the reduced Loschmidt echo persist under purely gain or loss dissipation but are completely smeared by any combination of both channels, even when one is infinitesimal.
Direct observation of dynamical quantum phase transitions in an interacting many-body system
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Smearing of dynamical quantum phase transitions in dissipative free-fermion systems
Dynamical quantum phase transitions in the reduced Loschmidt echo persist under purely gain or loss dissipation but are completely smeared by any combination of both channels, even when one is infinitesimal.