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Hilbert space factorization and partial measurements
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
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2003 (English)In: Optics and Spectroscopy, ISSN 0030-400X, E-ISSN 1562-6911, Vol. 94, no 5, 695-699 p.Article in journal (Refereed) Published
Abstract [en]

A quantum system whose state vector belongs to a finite-dimensional Hilbert space is considered. If this space has a dimension that is a composite number, one can factor the space into a tensor product of subspaces. An observable that acts only in one of these subspaces is called a partial measurement. Some of the properties and the interpretation of such partial measurements are discussed.

Place, publisher, year, edition, pages
2003. Vol. 94, no 5, 695-699 p.
Keyword [en]
quantum-mechanics, state determination, cryptography
URN: urn:nbn:se:kth:diva-22611ISI: 000183691700007OAI: diva2:341309
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Björk, Gunnar
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Microelectronics and Information Technology, IMIT
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