The Wigner–Yanase information can increase under phase sensitive incoherent operations

The Wigner–Yanase information can increase under phase sensitive incoherent operations

We found that the Wigner-Yanase skew information, which has been recently proposed as a measure of coherence in Girolami (2014), can increase under a class of operations which may be interpreted as incoherent following the framework of Baumgratz et al., while being phase sensitive.

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Bibliographische Detailangaben
Veröffentlicht in:Annals of physics 2015-08, Vol.359, p.136-140
Hauptverfasser: Du, Shuanping, Bai, Zhaofang
Format: Artikel
Sprache:eng
Schlagworte:
ANNIHILATION OPERATORS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coherence measure
EIGENSTATES
INFORMATION
Phase transitions
Physics
QUANTUM STATES
QUANTUM SYSTEMS
Wigner–Yanase skew information
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Beschreibung
Zusammenfassung:We found that the Wigner-Yanase skew information, which has been recently proposed as a measure of coherence in Girolami (2014), can increase under a class of operations which may be interpreted as incoherent following the framework of Baumgratz et al., while being phase sensitive.
ISSN:0003-4916
1096-035X
DOI:10.1016/j.aop.2015.04.023