Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/5954
Title: | Equivalence of classicality and separability based on P phase–space representation of symmetric multiqubit states |
Authors: | Usha Devi, A.R. Rajagopal, A.K. Sudha Karthik, H.S. Tej, Prabhu J. |
Keywords: | Non-classicality Separability Quantum entanglement Phase space representation Symmetric multiqubit states |
Issue Date: | Dec-2013 |
Publisher: | Springer |
Citation: | Quantum information processing, 2013, Vol.12, p3717-3723 |
Abstract: | Classical and quantum world views differ in peculiar ways. Understanding decisive quantum features—for which no classical explanation exist—and their interrelations is of foundational interest. Moreover, recognizing non-classical features carries practical significance in information processing tasks as it offers insights as to why quantum protocols work better than their classical counterparts. We focus here on two celebrated notions of non-classicality viz., negativity of P phase–space representation and entanglement in symmetric multiqubit systems. We prove that they imply each other. |
Description: | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) |
URI: | http://hdl.handle.net/2289/5954 |
ISSN: | 1570-0755 1573-1332 (Online) |
Alternative Location: | http://arxiv.org/abs/1306.2825 http://dx.doi.org/10.1007/s11128-013-0627-4 |
Copyright: | 2013 Springer Science+Business Media |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
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2013_QIP_V12_p3717.pdf Restricted Access | Restricted Access | 148.53 kB | Adobe PDF | View/Open Request a copy |
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