Generation and distillation of non-Gaussian entanglement from nonclassical photon statistics

Solomon Ivan, J. ; Mukunda, N. ; Simon, R. (2011) Generation and distillation of non-Gaussian entanglement from nonclassical photon statistics Quantum Information Processing . pp. 1-13. ISSN 1570-0755

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Official URL: http://www.springerlink.com/content/c6055791r2124l...

Related URL: http://dx.doi.org/10.1007/s11128-011-0316-0

Abstract

With a product state of the form ρin = ρa⊗ |0 ›bb ‹ 0| as input to a beam splitter, the output two-mode state ρ out is shown to be negative under partial transpose (NPT) whenever the photon number distribution (PND) statistics { ρ (n a ) } associated with the possibly mixed state ρ a of the input a-mode is antibunched or otherwise nonclassical, i.e., whenever { ρ (n a ) } fails to respect any one of an infinite sequence of necessary and sufficient classicality conditions. Negativity under partial transpose turns out to be a necessary and sufficient test for entanglement of ρ out which is generically non-Gaussian. The output of a PND distribution is further shown to be distillable if any one of an infinite sequence of three term classicality conditions is violated.

Item Type:Article
Source:Copyright of this article belongs to Springer.
Keywords:Partial Transpose; Non-gaussian Entanglement; Distillation of Entanglement; Beam Splitter; Photon Number Distribution
ID Code:87707
Deposited On:20 Mar 2012 15:12
Last Modified:12 Jul 2012 08:59

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