Influence of modal loss on the quantum state generation via cross-Kerr nonlinearity
arXiv:0904.3235 · doi:10.1103/PhysRevA.79.053832
Abstract
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.
To appear in PRA
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- Optical qudit-type entanglement creation at long distances by means of small cross-Kerr nonlinearities
- Verifying cross-Kerr induced number squeezing: a case study
- Quantum correlations and non-classicality in a system of two coupled vertical external cavity surface emitting lasers