Operator entanglement of two-qubit joint unitary operations revisited: Schmidt number approach

Operator entanglement of two-qubit joint unitary operations is revisited. Schmidt number is an important attribute of a two-qubit unitary operation, and may have connection with the entanglement measure of the unitary operator. We found the entanglement measure of two-qubit unitary operators is clas...

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Bibliographic Details
Published inarXiv.org
Main Authors Hui-Zhi Xia, Li, Chao, Yang, Qing, Yang, Ming, Zhuo-Liang Cao
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 04.04.2012
Subjects
Operators
Physics - Quantum Physics
Quantum entanglement
Schmidt number
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Summary:Operator entanglement of two-qubit joint unitary operations is revisited. Schmidt number is an important attribute of a two-qubit unitary operation, and may have connection with the entanglement measure of the unitary operator. We found the entanglement measure of two-qubit unitary operators is classified by the Schmidt number of the unitary operators. The exact relation between the operator entanglement and the parameters of the unitary operator is clarified too.
ISSN:2331-8422
DOI:10.48550/arxiv.1204.0996