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Quantum Information Processing
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arXiv.org e-Print Archive
Preprint . 2018
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Quantum Information Processing
Article . 2019 . Peer-reviewed
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https://dx.doi.org/10.48550/ar...
Article . 2018
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https://arxiv.org/abs/1812.007...
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Sharma–Mittal quantum discord

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 22 Apr 2019Embargo end date: 01 Jan 2018 English Publisher:Springer Science and Business Media LLCJournal:Quantum Information Processing, volume 18 (issn: 1570-0755, eissn: 1573-1332, Copyright policy )
Authors: Souma Mazumdar; Supriyo Dutta; Partha Guha;

doi: 10.1007/s11128-019-2289-3 , 10.48550/arxiv.1812.00752

arXiv: http://arxiv.org/abs/1812.00752

Sharma–Mittal quantum discord

Abstract

We demonstrate a generalization of quantum discord using a generalized definition of von-Neumann entropy, which is Sharma-Mittal entropy; and the new definition of discord is called Sharma-Mittal quantum discord. Its analytic expressions are worked out for two qubit quantum states as well as Werner, isotropic, and pointer states as special cases. The R{��}nyi, Tsallis, and von-Neumann entropy based quantum discords can be expressed as limiting cases for of Sharma-Mittal quantum discord. We also numerically compare all these discords and entanglement negativity.

This article is similar to the one published in Quantum Information Processing (2019) 18 (6), 169

Related Organizations
Keywords

FOS: Computer and information sciences, Quantum Physics, Computer Science - Information Theory, Information Theory (cs.IT), FOS: Physical sciences, Quantum Physics (quant-ph)

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
10
Top 10%
Average
Average
Green
bronze