Concurrence of superposition

Details Concurrence of superposition Concurrence of superposition

2006-10-26

arxiv.org/abs/quant-ph/0610219v1

Phys. Rev. A 75, 022332 (2007)

Physics

Quantum Physics

4 pages

Scientific paper

10.1103/PhysRevA.75.022332

The bounds on concurrence of the superposition state in terms of those of the
states being superposed are studied in this paper. The bounds on concurrence
are quite different from those on the entanglement measure based on von Neumann
entropy (Phys. Rev. Lett. 97, 100502 (2006)). In particular, a nonzero lower
bound can be provided if the states being superposed are properly constrained.

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