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Dynamical quantum phase transitions from quantum optics perspective (2204.09454v2)
Published 20 Apr 2022 in quant-ph, cond-mat.quant-gas, and cond-mat.str-el
Abstract: It is shown that dynamical quantum phase transitions observed as singularities in the Loschmidt rate singularities bear close resemblance to standard Rabi oscillations known from dynamics of two-level systems. For some many-body systems this analogy may go even further and the behaviour observed for e.g. transverse Ising chain can be directly mapped to such simple dynamics. It is explained why A simple link between Loschmidt echo singularities and quantum scars is suggested.
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