de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Equivalence classes of non-local unitary operations

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons60441

Cirac,  J. Ignacio
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Dür, W., & Cirac, J. I. (2002). Equivalence classes of non-local unitary operations. Quantum Information & Computation, 2(3), 240-254. Retrieved from http://www.rintonpress.com/journals/qic-2-3/240-254.pdf.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-C223-E
Zusammenfassung
We study when a multipartite non-local unitary operation can deterministically or probabilistically simulate another one when local operations of a certain kind-in some cases including also classical communication-are allowed. In the case of probabilistic simulation and allowing for arbitrary local operations, we provide necessary and sufficient conditions for the simulation to be possible. Deterministic and probabilistic interconversion under certain kinds of local operations are used to define equivalence relations between gates. In the probabilistic, bipartite case this induces a finite number of classes. In multiqubit systems, however, two unitary operations typically cannot simulate each other with non-zero probability of success. We also show which kind of entanglement can be created by a given non-local unitary operation and generalize our results to arbitrary operators.