Entanglement of Gaussian states using beam splitter

Details Entanglement of Gaussian states using beam splitter Entanglement of Gaussian states using beam splitter

2008-10-08

arxiv.org/abs/0810.1399v2

Phys. Rev. A 79, 023816 (2009)

Physics

Quantum Physics

6 pages, 3 figures, references added (particularly [19]), more detailed discussions

Scientific paper

10.1103/PhysRevA.79.023816

We study an experimental scheme to generate Gaussian two-mode entangled states via beam splitter. Specifically, we consider a nonclassical Gaussian state (squeezed state) and a thermal state as two input modes, and evaluate the degree of entanglement at the output. Experimental conditions to generate entangled outputs are completely identified and the critical thermal noise to destroy entanglement is analytically obtained. By doing so, we discuss the possibility to link the resistance to noise in entanglement generation with the degree of single-mode nonclassicality.

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