Physics – Quantum Physics
Scientific paper
2012-02-14
Ann. Phys. 327, 1304 (2012)
Physics
Quantum Physics
LaTeX, 22 pages
Scientific paper
10.1016/j.aop.2012.02.002
We study bipartite entanglement in systems of N identical bosons distributed in M different modes. For such systems, a definition of separability not related to any a priori Hilbert space tensor product structure is needed and can be given in terms of commuting subalgebras of observables. Using this generalized notion of separability, we classify the states for which partial transposition turns out to be a necessary and sufficient condition for entanglement detection.
Benatti Fabio
Floreanini Roberto
Marzolino Ugo
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