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Propagation of entangled light pulses through dispersive and absorbing channels

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arxiv quant-ph/0003143 v3 pith:OTPIE4T6 submitted 2000-03-30 quant-ph

Propagation of entangled light pulses through dispersive and absorbing channels

classification quant-ph
keywords quantumabsorbingcorrelationsdispersiveentangledfour-portlightpulses
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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