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A new product entropy

Zhang, Jiaju et al.
arXiv (OAI Expanded) · Papers
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high-energy-physics-theoryquantum-physicsstatistical-mechanics
We propose a new product entropy, defined as the Rényi (or von Neumann) entropy of a normalized product operator constructed from two density matrices. We establish a duality showing that the SVD entanglement entropy of a subsystem for two pure states is exactly equivalent to the product entropy of
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