Entanglement of arbitrary spin modes in expanding universe

Entanglement of arbitrary spin modes in expanding universe Pair particle creation is a well-known effect in the domain of field theory in curved space–time. The behavior of the generated entanglement due to expanding universe is very different for spin-0 and spin-1/2 particles. We study spin-1 particles in Friedmann–Robertson–Walker (FRW) space–time using Duffin–Kemmer–Petiau equation and spin-3/2 particles in FRW space–time using Rarita–Schwinger equation. We find that in expanding universe, the behavior of the generated entanglement for spin-1 particles is the same as the behavior of the generated entanglement for spin-0 particles. Also, we find that spin-3/2 and spin-1/2 particles have the same behavior for the generated entanglement in expanding universe. We conclude that the absolute values of spins do not play any role and the differences in the behavior of the generated entanglement in expanding universe are due to bosonic or fermionic properties. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Entanglement of arbitrary spin modes in expanding universe

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Publisher
Springer Journals
Copyright
Copyright © 2015 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-015-1125-7
Publisher site
See Article on Publisher Site

Abstract

Pair particle creation is a well-known effect in the domain of field theory in curved space–time. The behavior of the generated entanglement due to expanding universe is very different for spin-0 and spin-1/2 particles. We study spin-1 particles in Friedmann–Robertson–Walker (FRW) space–time using Duffin–Kemmer–Petiau equation and spin-3/2 particles in FRW space–time using Rarita–Schwinger equation. We find that in expanding universe, the behavior of the generated entanglement for spin-1 particles is the same as the behavior of the generated entanglement for spin-0 particles. Also, we find that spin-3/2 and spin-1/2 particles have the same behavior for the generated entanglement in expanding universe. We conclude that the absolute values of spins do not play any role and the differences in the behavior of the generated entanglement in expanding universe are due to bosonic or fermionic properties.

Journal

Quantum Information ProcessingSpringer Journals

Published: Sep 28, 2015

References

  • Quantum entanglement
    Horodecki, R; Horodecki, P; Horodecki, M; Horodecki, K
  • Quantum teleportation with nonclassical correlated states in noninertial frames
    Mehri-Dehnavi, H; Rahimi, R; Mohammadzadeh, H; Ebadi, Z; Mirza, B
  • Quantum metrology for relativistic quantum fields
    Ahmadi, M; Bruschi, DE; Fuentes, I
  • Spatially extended Unruh–DeWitt detectors for relativistic quantum information
    Lee, AR; Fuentes, I
  • Entanglement in an expanding spacetime
    Ball, JL; Fuentes-Schuller, I; Schuller, FP

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