Title: The Algebraic Measure of a Hidden Markov Quantum Memory Channel
Authors: Akhalwaya, Ismail
Wouters, Jeroen
Fannes, Mark
Petruccione, Francesco #
Issue Date: 2009
Publisher: Springer New York LLC
Host Document: AIP Conference Proceedings vol:1110 pages:127-130
Conference: International Conference on Quantum Communication, Measurement, and Computing edition:9 location:Calgary, Canada date:AUG 19-24, 2008
Abstract: The classical product state capacity of a noisy quantum channel with memory is investigated. A forgetful noise-memory channel is constructed by Markov switching between two depolarizing channels which introduces non-Markovian noise correlations between successive channel uses. This function of a Markov process can be reformulated as an algebraic measure. This framework provides an expression for the asymptotic entropy rate and thus enables the calculation of the classical capacity. The effects of the hidden-Markovian memory on the capacity are explored. An increase in noise-correlations is found to increase the capacity.
ISBN: 978-0-7354-0647-6
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Theoretical Physics Section
# (joint) last author

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