About: Comparison of two unknown quantum states

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Can we establish whether or not two quantum systems have been prepared in the same state? We investigate the possibility of universal unambiguous state comparison. We show that it is impossible to conclusively identify two pure unknown states as being identical, and construct the optimal measurement for conclusively identifying them as being different. We then derive optimal strategies for state comparison when the state of each system is one of two known states. Can we establish whether or not two quantum systems have been prepared in the same state? We investigate the possibility of universal unambiguous state comparison. We show that it is impossible to conclusively identify two pure unknown states as being identical, and construct the optimal measurement for conclusively identifying them as being different. We then derive optimal strategies for state comparison when the state of each system is one of two known states. (en)
Title	Comparison of two unknown quantum states Comparison of two unknown quantum states (en)
skos:prefLabel	Comparison of two unknown quantum states Comparison of two unknown quantum states (en)
skos:notation	RIV/68407700:21340/03:04077620!RIV/2004/MSM/213404/N
http://linked.open.../vavai/riv/strany	189 ; 195
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 210000018)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Jex, Igor
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	601801
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/03:04077620
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	quantum information; quantum measurement (en)
http://linked.open.../riv/klicoveSlovo	quantum measurement quantum information
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[5A599465FE3C]
http://linked.open...i/riv/nazevZdroje	Physics Letters A
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	307
http://linked.open...iv/tvurceVysledku	Jex, Igor Barnett, S. M. Chefles, A.
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20210000018
issn	0375-9601
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	21340

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