Engineering Classical Capacity of Generalized Pauli Channels with Admissible Memory Kernels

Katarzyna Siudzińska; Arpan Das; Anindita Bera

doi:10.3390/e23111382

Engineering Classical Capacity of Generalized Pauli Channels with Admissible Memory Kernels

Entropy (Basel). 2021 Oct 21;23(11):1382. doi: 10.3390/e23111382.

Authors

Katarzyna Siudzińska¹, Arpan Das¹, Anindita Bera¹

Affiliation

¹ Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, ul. Grudziądzka 5, 87-100 Toruń, Poland.

Abstract

In this paper, we analyze the classical capacity of the generalized Pauli channels generated via memory kernel master equations. For suitable engineering of the kernel parameters, evolution with non-local noise effects can produce dynamical maps with a higher capacity than a purely Markovian evolution. We provide instructive examples for qubit and qutrit evolution. Interestingly, similar behavior is not observed when analyzing time-local master equations.

Keywords: classical capacity; generalized Pauli channels; memory kernels; non-Markovian evolution.

Abstract

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