Wednesday, March 27, 2013

1303.6403 (J. Sperling et al.)

Multipartite Entanglement Witnesses    [PDF]

J. Sperling, W. Vogel
We derive a set of algebraic equations, the so-called multipartite separability eigenvalue equations. Based on their solutions, we introduce a universal method for the construction of multipartite entanglement witnesses. We witness multipartite entanglement of $10^3$ coupled quantum oscillators, by solving our basic equations analytically. This clearly demonstrates the feasibility of our method for studying ultra-high orders of multipartite entanglement in complex quantum systems.
View original: http://arxiv.org/abs/1303.6403

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