Entanglement evolution in a five qubit error correction code

In this paper I explore the entanglement evolution of qubits that are part of a five qubit quantum error correction code subject to various decohering environments. Specifically, I look for possible parallels between the entanglement degradation and the fidelity of the logical qubit of quantum infor...

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Bibliographic Details
Published inQuantum information processing Vol. 10; no. 4; pp. 533 - 542
Main Author Weinstein, Yaakov S.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.08.2011
Subjects
Data Structures and Information Theory
Mathematical Physics
Physics
Physics and Astronomy
Quantum Computing
Quantum Information Technology
Quantum Physics
Spintronics
Decoherence
Entanglement
Quantum error correction
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Summary:In this paper I explore the entanglement evolution of qubits that are part of a five qubit quantum error correction code subject to various decohering environments. Specifically, I look for possible parallels between the entanglement degradation and the fidelity of the logical qubit of quantum information stored in the physical qubits. In addition, I note the possible exhibition of entanglement sudden death (ESD) due to decoherence and question whether ESD is actually a roadblock to successful quantum computation.
ISSN:1570-0755
1573-1332
DOI:10.1007/s11128-010-0216-8