Propagation of entangled light pulses through dispersive and absorbing channels

A. V. Chizhov; E. Schmidt; L. Knoll; D. -G. Welsch

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Propagation of entangled light pulses through dispersive and absorbing channels

A. V. Chizhov·E. Schmidt·L. Knoll·D. -G. Welsch

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Abstract

The modification of initially entangled light pulses passing through dispersive and absorbing four-port devices is studied, using recently obtained results on quantum state transformations [Phys. Rev. A 59, 4716 (1999)]. The fidelity and indices of quantum correlations based on the von Neumann entropy are calculated. Their dependence on both the pulse shape and the four-port device parameters is studied. It is shown, that due to dispersion and absorption the quantum correlations are reduced substantially for large initial entanglement.

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A. V. Chizhov, E. Schmidt, L. Knoll, D. -G. Welsch. 2001-01-18. Propagation of entangled light pulses through dispersive and absorbing channels. https://arxiv.org/abs/quant-ph/0003143

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