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Five quantum register error correction code for higher spin systems

H. F. Chau
Phys. Rev. A 56, R1(R) – Published 1 July 1997
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Abstract

I construct a quantum error correction code (QECC) in higher spin systems using the idea of multiplicative group character. Each N-state quantum particle is encoded as five N-state quantum registers. By doing so, this code can correct any quantum error arising from any one of the five quantum registers. This code generalizes the well-known five qubit perfect code in spin-1/2 systems and is shown to be optimal for higher spin systems. I also report a simple algorithm for encoding. The importance of multiplicative group character in constructing QECCs will be addressed.

  • Received 18 February 1997

DOI:https://doi.org/10.1103/PhysRevA.56.R1

©1997 American Physical Society

Authors & Affiliations

H. F. Chau

  • Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong

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Vol. 56, Iss. 1 — July 1997

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