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Title: Concurrence of superpositions

Abstract

Bounds on the concurrence of the superposition state in terms of the concurrences of the states being superposed are found in this paper. The bounds on concurrence are quite different from those on the entanglement measured by von Neumann entropy [Linden et al., Phys. Rev. Lett. 97, 100502 (2006)]. In particular, a nonzero lower bound can be provided if the states being superposed are properly constrained.

Authors:
; ;  [1]
  1. Department of Physics, Dalian University of Technology, Dalian 116024 (China)
Publication Date:
OSTI Identifier:
20982099
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.022332; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ENTROPY; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS

Citation Formats

Yu, Chang-shui, Yi, X. X., and Song, He-shan. Concurrence of superpositions. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.022332.
Yu, Chang-shui, Yi, X. X., & Song, He-shan. Concurrence of superpositions. United States. doi:10.1103/PHYSREVA.75.022332.
Yu, Chang-shui, Yi, X. X., and Song, He-shan. Thu . "Concurrence of superpositions". United States. doi:10.1103/PHYSREVA.75.022332.
@article{osti_20982099,
title = {Concurrence of superpositions},
author = {Yu, Chang-shui and Yi, X. X. and Song, He-shan},
abstractNote = {Bounds on the concurrence of the superposition state in terms of the concurrences of the states being superposed are found in this paper. The bounds on concurrence are quite different from those on the entanglement measured by von Neumann entropy [Linden et al., Phys. Rev. Lett. 97, 100502 (2006)]. In particular, a nonzero lower bound can be provided if the states being superposed are properly constrained.},
doi = {10.1103/PHYSREVA.75.022332},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}