Information transmission under Markovian noise
Quantum Physics
2024-10-24 v2 Information Theory
math.IT
Abstract
We consider an open quantum system undergoing Markovian dynamics, the latter being modelled by a discrete-time quantum Markov semigroup , resulting from the action of sequential uses of a quantum channel , with being the discrete time parameter. We find upper and lower bounds on the one-shot -error information transmission capacities of for a finite time and in terms of the structure of the peripheral space of the channel . We consider transmission of classical information (both in the unassisted and entanglement-assisted settings); quantum information and private classical information.
Cite
@article{arxiv.2409.17743,
title = {Information transmission under Markovian noise},
author = {Satvik Singh and Nilanjana Datta},
journal= {arXiv preprint arXiv:2409.17743},
year = {2024}
}
Comments
Updated version. Finite time analysis has been slightly refined