Influence of modal loss on the quantum state generation via cross-Kerr nonlinearity

Details Influence of modal loss on the quantum state generation via cross-Kerr nonlinearity Influence of modal loss on the quantum state generation via cross-Kerr nonlinearity

2009-04-21

arxiv.org/abs/0904.3235v1

Physics

Quantum Physics

To appear in PRA

Scientific paper

In this work we investigate an influence of decoherence effects on quantum states generated as a result of the cross-Kerr nonlinear interaction between two modes. For Markovian losses (both photon loss and dephasing), a region of parameters when losses still do not lead to destruction of non-classicality is identified. We emphasize the difference in impact of losses in the process of state generation as opposed to those occurring in propagation channel. We show moreover, that correlated losses in modern realizations of schemes of large cross-Kerr nonlinearity might lead to enhancement of non-classicality.

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