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Quantitative measures of entanglement in pair-coherent states

G S Agarwal1,3 and Asoka Biswas2

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The pair-coherent states for a two-mode radiation field are known to belong to a family of states with non-Gaussian wavefunction. The nature of quantum entanglement between the two modes and some features of non-classicality are studied for such states. The existing criterion for inseparability are examined in the context of pair-coherent states.


PACS

42.50.Dv Quantum state engineering and measurements

03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)

Subjects

Optics, quantum optics and lasers

Quantum information and quantum mechanics

Dates

Issue 11 (November 2005)

Received 17 July 2005, accepted for publication 6 October 2005

Published 21 October 2005



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