About: On the local unitary equivalence of states of multi-partite systems

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Two pure states of a multi-partite system are alway are related by a unitary transformation acting on the Hilbert space of the hole system. This transformation involves multi-partite transformations. On the other hand some quantum information protocols such as the quantum teleportation and quantum dense coding are based on equivalence of some classes of states of bi-partite systems under the action of local (one-particle) unitary operations. In this paper we adress the question: %22Under what conditions are the two states states, Q and a, of a multi-partite system locally unitary equivalent?%22 We present a set of conditions which have to be satisfied in order that the two states are locally unitary equivalent. In addition, we study whether it is possible to prepare a state of a multi-qudit system. Which is devided into two parts A and B, by unitary operations acting only on the systems A and B, separately. Two pure states of a multi-partite system are alway are related by a unitary transformation acting on the Hilbert space of the hole system. This transformation involves multi-partite transformations. On the other hand some quantum information protocols such as the quantum teleportation and quantum dense coding are based on equivalence of some classes of states of bi-partite systems under the action of local (one-particle) unitary operations. In this paper we adress the question: %22Under what conditions are the two states states, Q and a, of a multi-partite system locally unitary equivalent?%22 We present a set of conditions which have to be satisfied in order that the two states are locally unitary equivalent. In addition, we study whether it is possible to prepare a state of a multi-qudit system. Which is devided into two parts A and B, by unitary operations acting only on the systems A and B, separately. (en)
Title	On the local unitary equivalence of states of multi-partite systems On the local unitary equivalence of states of multi-partite systems (en)
skos:prefLabel	On the local unitary equivalence of states of multi-partite systems On the local unitary equivalence of states of multi-partite systems (en)
skos:notation	RIV/00216224:14330/01:00005674!RIV/2002/GA0/143302/N
http://linked.open.../vavai/riv/strany	1123
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA201/98/0369)
http://linked.open...iv/cisloPeriodika	10,11
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Bužek, Vladimír
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	Masarykova univerzita / Fakulta informatiky
http://linked.open...dnocenehoVysledku	690000
http://linked.open...ai/riv/idVysledku	RIV/00216224:14330/01:00005674
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	On the local unitary equivalence of states of multi-partite systems (en)
http://linked.open.../riv/klicoveSlovo	On the local unitary equivalence of states of multi-partite systems
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[9B4530846848]
http://linked.open...i/riv/nazevZdroje	FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
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...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Informatics as the third methodology
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	49
http://linked.open...iv/tvurceVysledku	Bůžek, Vladimír Stelmachovic, P. Ziman, M.
issn	0015-8208
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	14330

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