Measuring complete quantum states with a single observable

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dc.contributor.authorSuter, Dieter
dc.contributor.authorPeng, Xinhua
dc.contributor.authorDu, Jiangfeng
dc.date.accessioned2008-06-02T12:54:06Z
dc.date.available2008-06-02T12:54:06Z
dc.date.issued2007-10-13
dc.description.abstractExperimental determination of an unknown quantum state usually requires several incompatible measurements. However, it is also possible to determine the full quantum state from a single, repeated measurement. For this purpose, the quantum system whose state is to be determined is first coupled to a second quantum system (the “assistant”) in such a way that part of the information in the quantum state is transferred to the assistant. The actual measurement is then performed on the enlarged system including the original system and the assistant. We discuss in detail the requirements of this procedure and experimentally implement it on a simple quantum system consisting of nuclear spins.en
dc.identifier.citationPeng, X.; Du, J.; Suter, D.: Measuring complete quantum states with a single observable. In: Physical Review A Jg. 76(2007), 042117.de
dc.identifier.doi10.1103/PhysRevA.76.042117
dc.identifier.urihttp://hdl.handle.net/2003/25405
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-8072
dc.identifier.urlhttp://dx.doi.org/10.1103/PhysRevA.76.042117
dc.language.isoende
dc.publisherThe American Physical Societyen
dc.rights©2007 The American Physical Societyen
dc.subject.ddc530
dc.titleMeasuring complete quantum states with a single observableen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted
eldorado.identifier.urlhttp://e3.physik.tu-dortmund.de/~suter/eprints/SingleObsTomogr.pdf

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