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Bipartite and tripartite entanglement of truncated harmonic oscillator coherent states via beam splitters. (English) Zbl 1230.81009

A refined version of truncated Weyl-Heisenberg algebra, with its corresponding Hilbert and analytical representations is introduced. A linear entropy is used to study the bi-and tripartite entanglement of the associated coherent states when passed through a quantum network of \(k=1,2\) beam splitters, particularly, maximal tripartite entanglement is achieved when the beam splitters ate 50:50.

MSC:

81P40 Quantum coherence, entanglement, quantum correlations
81P45 Quantum information, communication, networks (quantum-theoretic aspects)
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