This HTML5 document contains 43 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n18http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F00216224%3A14330%2F05%3A00013049%21RIV10-GA0-14330___/
n17http://localhost/temp/predkladatel/
n15http://linked.opendata.cz/resource/domain/vavai/projekt/
n13http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n3http://linked.opendata.cz/ontology/domain/vavai/
n19http://linked.opendata.cz/resource/domain/vavai/zamer/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n5http://linked.opendata.cz/ontology/domain/vavai/riv/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n7http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n16http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n12http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n6http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n14http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n8http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n10http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F00216224%3A14330%2F05%3A00013049%21RIV10-GA0-14330___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
We analyze how a maximally entangled state of two qubits (e.g., the singlet $psi_s$) is affected by the action of local channels described by completely positive maps $E$. We analyze the concurrence and the purity of states $rho_E=E \otimes I_psi_s$. Using the concurrence-versus-purity phase diagram we characterize local channels $E$ by their action on the singlet state $psi_s$. We specify a region of the concurrence-versus-purity diagram that is achievable from the singlet state via the action of unital channels. We show that even the most general (including nonunital) local channels acting just on a single qubit of the original singlet state cannot generate the maximally entangled mixed states. We study in detail various time evolutions of the original singlet state induced by local Markovian semigroups. We show that the decoherence process is represented in the concurrence-versus-purity diagram by a line that forms the lower bound of the achievable region for unital maps. We analyze how a maximally entangled state of two qubits (e.g., the singlet $psi_s$) is affected by the action of local channels described by completely positive maps $E$. We analyze the concurrence and the purity of states $rho_E=E \otimes I_psi_s$. Using the concurrence-versus-purity phase diagram we characterize local channels $E$ by their action on the singlet state $psi_s$. We specify a region of the concurrence-versus-purity diagram that is achievable from the singlet state via the action of unital channels. We show that even the most general (including nonunital) local channels acting just on a single qubit of the original singlet state cannot generate the maximally entangled mixed states. We study in detail various time evolutions of the original singlet state induced by local Markovian semigroups. We show that the decoherence process is represented in the concurrence-versus-purity diagram by a line that forms the lower bound of the achievable region for unital maps.
dcterms:title
Concurrence versus purity: Influence of local channels on Bell states of two qubits Concurrence versus purity: Influence of local channels on Bell states of two qubits
skos:prefLabel
Concurrence versus purity: Influence of local channels on Bell states of two qubits Concurrence versus purity: Influence of local channels on Bell states of two qubits
skos:notation
RIV/00216224:14330/05:00013049!RIV10-GA0-14330___
n5:aktivita
n6:P n6:Z
n5:aktivity
P(GA201/04/1153), Z(MSM0021622419)
n5:cisloPeriodika
No. 5
n5:dodaniDat
n10:2010
n5:domaciTvurceVysledku
n13:1365878 n13:4347196
n5:druhVysledku
n8:J
n5:duvernostUdaju
n16:S
n5:entitaPredkladatele
n18:predkladatel
n5:idSjednocenehoVysledku
516165
n5:idVysledku
RIV/00216224:14330/05:00013049
n5:jazykVysledku
n12:eng
n5:klicovaSlova
concurrence; entanglement; local dynamics; decoherence
n5:klicoveSlovo
n7:decoherence n7:entanglement n7:local%20dynamics n7:concurrence
n5:kodStatuVydavatele
US - Spojené státy americké
n5:kontrolniKodProRIV
[51B23E656B3B]
n5:nazevZdroje
Physical Review A
n5:obor
n14:BE
n5:pocetDomacichTvurcuVysledku
2
n5:pocetTvurcuVysledku
2
n5:projekt
n15:GA201%2F04%2F1153
n5:rokUplatneniVysledku
n10:2005
n5:svazekPeriodika
Vol. 72
n5:tvurceVysledku
Bužek, Vladimír Ziman, Mário
n5:wos
000233603400064
n5:zamer
n19:MSM0021622419
s:issn
1050-2947
s:numberOfPages
9
n17:organizacniJednotka
14330