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Quantum limits on phase-shift detection using multimode interferometers
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
2003 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 67, no 5Article in journal (Refereed) Published
Abstract [en]

Fundamental phase-shift detection properties of optical multimode interferometers are analyzed. Limits on perfectly distinguishable phase shifts are derived for general quantum states of a given average energy. These bounds are found to be independent of the number of interfering modes, and are consistent with the Heisenberg limit. A short discussion on the concept of well-defined relative phase is also included.

Place, publisher, year, edition, pages
2003. Vol. 67, no 5
Keyword [en]
precision, noise, states, evolution
Identifiers
URN: urn:nbn:se:kth:diva-22553DOI: 10.1103/PhysRevA.67.053803ISI: 000183298800091OAI: oai:DiVA.org:kth-22553DiVA: diva2:341251
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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