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Updated: Sep 5, 2025

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Noisy propagation of Gaussian states in optical media with finite bandwidth
Berihu Teklu1, Matteo Bina2, Matteo G A Paris3,4
1Department of Applied Mathematics and Sciences and Center for Cyber-Physical Systems (C2PS), Khalifa University, 127788, Abu Dhabi, United Arab Emirates.
Abstract:
We address propagation and entanglement of Gaussian states in optical media characterised by nontrivial spectral densities. In particular, we consider environments with a finite bandwidth [Formula: see text], and show that in the low temperature regime [Formula: see text]: (i) secular terms in the master equation may be neglected; (ii) attenuation (damping) is strongly suppressed; (iii) the overall diffusion process may be described as a Gaussian noise channel with variance depending only on the bandwidth. We find several regimes where propagation is not much detrimental and entanglement may be protected form decoherence.
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