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Entanglement of the vacuum between left, right, future, and past: Dirac spinor in Rindler spaces and Kasner spaces

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Publication details

JournalPhysical Review D
DateAccepted/In press - 11 May 2021
DatePublished (current) - 8 Jun 2021
Issue number12
Original languageEnglish


We study the relations of the positive frequency mode functions of Dirac eld in 4-dimensional Minkowski spacetime covered with Rindler and Kasner coordinates, and describe the explicit form of the Minkowski vacuum state with the quantum states in Kasner and Rindler regions, and analytically continue the solutions. As a result, we obtain the correspondence of the positive frequency mode functions in Kasner region and Rindler region in a unied manner which derives vacuum entanglement.

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