On the effectiveness of Bayesian discrete feedback for quantum information reclaiming

We consider discrete time feedback aimed at reclaiming quantum information after a channel action. We compare Bayesian and Markovian strategies. We show that the former does not offer any advantage for qubit channels, while its superior performance can appear in higher-dimensional channels. This is...

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Bibliographic Details
Published inQuantum information processing Vol. 23; no. 7
Main Authors Rexiti, Milajiguli, Oskouei, Samad Khabbazi, Mancini, Stefano
Format Journal Article
LanguageEnglish
Published New York Springer US 28.06.2024
Springer Nature B.V
Subjects
Bayesian analysis
Channels
Data Structures and Information Theory
Feedback
Mathematical Physics
Physics
Physics and Astronomy
Quantum Computing
Quantum Information Technology
Quantum phenomena
Quantum Physics
Qubits (quantum computing)
Spintronics
Quantum channels
Quantum measurement
Quantum control
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Summary:We consider discrete time feedback aimed at reclaiming quantum information after a channel action. We compare Bayesian and Markovian strategies. We show that the former does not offer any advantage for qubit channels, while its superior performance can appear in higher-dimensional channels. This is witnessed by cases study for qutrit channels.
ISSN:1573-1332
1570-0755
1573-1332
DOI:10.1007/s11128-024-04467-x