Entanglement between total intensity and polarization for pairs of coherent states



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Sanchidrian-Vaca, Carlos and Luis Aina, Alfredo (2018) Entanglement between total intensity and polarization for pairs of coherent states. Physical review A, 97 (4). ISSN 2469-9926

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Official URL: http://dx.doi.org/10.1103/PhysRevA.97.043810


We examine entanglement between number and polarization, or number and relative phase, in pair coherent states and two-mode squeezed vacuum via linear entropy and covariance criteria. We consider the embedding of the two-mode Hilbert space in a larger space to get a well-defined factorization of the number-phase variables. This can be regarded as a kind of protoentanglement that can be extracted and converted into real particle entanglement via feasible experimental procedures. In particular this reveals interesting entanglement properties of pairs of coherent states.

Item Type:Article
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©2018 American Physical Society.
A.L. acknowledges financial support from Spanish Ministerio de Economía y Competitividad Project No. FIS2016-75199-P, and from the Comunidad Autónoma de Madrid research consortium QUITEMAD+ Grant No. S2013/ICE-2801.

Uncontrolled Keywords:Tensor product structures; Phase-difference; Quantum optics; Decoherence; Variables; Cavity; Fields
Subjects:Sciences > Physics > Geophysics
Sciences > Physics > Optics
ID Code:47446
Deposited On:11 May 2018 17:08
Last Modified:14 May 2018 08:06

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