Design of Coherent Passive Quantum Equalizers Using Robust Control Theory
V. Ugrinovskii, M.R. James
TL;DR
This paper introduces a systematic method for designing coherent quantum equalizers using robust control techniques, specifically semidefinite programming, to improve quantum communication channels by mitigating environmental effects.
Contribution
It presents a novel equalizer synthesis algorithm for quantum systems based on state-space robust control methods, advancing quantum communication technology.
Findings
Developed a systematic equalizer synthesis algorithm
Applied semidefinite programming to quantum control design
Enhanced mitigation of environmental effects in quantum channels
Abstract
The paper develops a methodology for the design of coherent equalizing filters for quantum communication channels. Given a linear quantum system model of a quantum communication channel, the aim is to obtain another quantum system which, when coupled with the original system, mitigates degrading effects of the environment. The main result of the paper is a systematic equalizer synthesis algorithm which relies on methods of state-space robust control design via semidefinite programming.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture · Optical Network Technologies