Tripartite entanglement in a noninertial frame

Journal Article · Sat Jan 15 04:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.012111· OSTI ID:21529033

Hwang, Mi-Ra ^[1]; Park, DaeKil ^[1]; Jung, Eylee ^[2]

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1. Department of Physics, Kyungnam University, Masan, 631-701 (Korea, Republic of)
2. Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784 (Korea, Republic of)

Tripartite entanglement is examined when one of the three parties moves with a uniform acceleration with respect to other parties. As the Unruh effect indicates, tripartite entanglement exhibits a decreasing behavior with increasing acceleration. Unlike bipartite entanglement, however, tripartite entanglement does not completely vanish in the infinite acceleration limit. If the three parties, for example, share the Greenberger-Horne-Zeilinger or W state initially, the corresponding {pi}-tangle, one of the measures of tripartite entanglement, is shown to be {pi}/6{approx}0.524 or 0.176 in this limit, respectively. This fact indicates that tripartite quantum-information processing may be possible even if one of the parties approaches the Rindler horizon. The physical implications of this striking result are discussed in the context of black-hole physics.

• OSTI ID: 21529033
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
BLACK HOLES
INFORMATION
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
QUANTUM STATES