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Entangled states in interferometry
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
2002 (English)In: Acta Physica Polonica. A, ISSN 0587-4246, E-ISSN 1898-794X, Vol. 101, no 1, 37-46 p.Article in journal (Refereed) Published
Abstract [en]

We show how some entangled quantum states can be used to improve interferometric measurements. We describe why Schrodinger-cat states are very sensitive to relative-phase shifts and why relative-phase states as described by A. Luis and L.L. Sanchez-Soto resolve the interval [0, 2pi] well. We also describe how the quantum concept of well-defined relative-phase and the classical visibility of an interference pattern are related.

Place, publisher, year, edition, pages
2002. Vol. 101, no 1, 37-46 p.
Keyword [en]
relative phase
Identifiers
URN: urn:nbn:se:kth:diva-21340ISI: 000174029700004OAI: oai:DiVA.org:kth-21340DiVA: diva2:340038
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Björk, Gunnar

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