Decomposition Properties of Quantum Discord

Decomposition Properties of Quantum Discord

The quantum discord was introduced by Ollivier,Zurek,Henderson,and Vedral as an indicator of the degree of quantumness of mixed states.In this paper,we provide a decomposition condition for quantum discord.Moreover,we show that under the condition,the quantum correlations between the quantum systems...

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Veröffentlicht in:Communications in theoretical physics 2016-04, Vol.65 (4), p.441-446
Hauptverfasser: Kim, Sunho, Wu, Jun-De, Cho, Minhyung
Format: Artikel
Sprache:eng
Schlagworte:
Correlation analysis
Decomposition
Entanglement
Indicators
Quantum theory
Theoretical physics
分解条件
分解特性
和谐
纠缠
量子关联
量子混合态
量子系统
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Zusammenfassung:The quantum discord was introduced by Ollivier,Zurek,Henderson,and Vedral as an indicator of the degree of quantumness of mixed states.In this paper,we provide a decomposition condition for quantum discord.Moreover,we show that under the condition,the quantum correlations between the quantum systems can be captured completely by the entanglement measure.Finally,we present examples of our conclusions.
ISSN:0253-6102
1572-9494
DOI:10.1088/0253-6102/65/4/441