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Coherence protection by random coding.

Brion, E.
; 
Akulin, V.M.
; 
Dumer, I.
; 
Harel, Gil
; 
Kurizki, G.
Publication Date
2005
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Keywords
Coherent control,, Complex systems, Error correction, Non-holonomic control,, Random coding, Quantum computation, Quantum information, Quantum mechanics, Decoherence, Zeno effect
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Peer-Reviewed
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Accepted for publication
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Engineering and Digital Technology Publications
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Abstract
We show that the multidimensional Zeno effect combined with non-holonomic control allows one to efficiently protect quantum systems from decoherence by a method similar to classical random coding. The method is applicable to arbitrary error-inducing Hamiltonians and general quantum systems. The quantum encoding approaches the Hamming upper bound for large dimension increases. Applicability of the method is demonstrated with a seven-qubit toy computer.
URI
http://hdl.handle.net/10454/3991
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Citation
Brion, G, Akulia, V.M., Dumer, I., Harel, G. and Kurizki, G. (2005). Coherence protection by random coding. Journal of Optics B: Quantum and Semiclassical Optics. Vol. 7, No. 10, pp. S353-S355.
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https://doi.org/10.1088/1464-4266/7/10/022
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Article
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