Entanglement measures: state ordering vs local operations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F07%3A00020705" target="_blank" >RIV/00216224:14330/07:00020705 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Entanglement measures: state ordering vs local operations
Original language description
A set of all states of a bi-partite quantum system can be divided into subsets each of which contains states with the same degree of entanglement. In this paper we address a question whether local operations (without classical communication) affect the entanglement-induced state ordering. We show that arbitrary unilocal channel (i.e., a channel that acts on one sub-system of a bi-partite system only) might change the ordering for an arbitrary nontrivial measure of entanglement. A slightly weaker resultholds for the maximally entangled states. In particular, the maximally entangled states might not remain the most entangled ones at the output of a unilocal noise channel.
Czech name
Míry entanglování: uspořádání stavů versus lokální operace
Czech description
Analýza otázky, zda lokální operace mění uspořádání stavů indukovaném entanglváním.

Project
<a href="/en/project/GA201%2F07%2F0603" target="_blank" >GA201/07/0603: Quantum multipartite computation, communication and security</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Book/collection name
Quantum Communication and Security (edited by Marek Żukowski, Sergei Kilin, Janusz Kowalik)
ISBN
978-1-58603-749-9
Number of pages of the result
9
Pages from-to
196-204
Number of pages of the book
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Publisher name
IOP Press
Place of publication
Amsterdam
UT code for WoS chapter
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