Pseudoentropy sum rule by analytical continuation of the superposition parameter
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DOI: 10.1007/jhep11(2024)069
Abstract: In this paper, we establish a sum rule that connects the pseudoentropy and entanglement entropy of the superposition state. Through analytical continuation of the superposition parameter, we demonstrate that the transition matrix and density matrix… read more here.
Keywords: analytical continuation; sum rule; superposition;