Universality in volume-law entanglement of scrambled pure quantum states

The entanglement in a quantum system between a small region and the surrounding environment contains details about the whole state. Nakagawa et al. find a formula for the entanglement entropy of a class of thermal-like states and show that it can be applied more broadly to identify equilibrating sta...

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Autores principales: Yuya O. Nakagawa, Masataka Watanabe, Hiroyuki Fujita, Sho Sugiura
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2018
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Acceso en línea:https://doaj.org/article/a69813cc625043669fd2d23656860b57
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Sumario:The entanglement in a quantum system between a small region and the surrounding environment contains details about the whole state. Nakagawa et al. find a formula for the entanglement entropy of a class of thermal-like states and show that it can be applied more broadly to identify equilibrating states.