Performance comparison between classical and quantum control for a simple quantum system

Zairong Xi and Guangsheng Jin

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 4, 1056-1062

Abstract: Brańczyk et al. pointed out that the quantum control scheme is superior to the classical control scheme for a simple quantum system using simulation [A.M. Brańczyk, P.E.M.F. Mendonca, A. Gilchrist, A.C. Doherty, S.D. Barlett, Quantum control theory of a single qubit, Physical Review A 75 (2007) 012329 or arXiv e-print quant-ph/0608037]. Here we rigorously prove the result. Furthermore we will show that any quantum operation does not universally “correct” the dephasing noise.

Keywords: Quantum control; Quantum information; Quantum channel; Quantum noise; Classical control (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:4:p:1056-1062

DOI: 10.1016/j.physa.2007.10.019

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