Quantum limits on phase-shift detection using multimode interferometers
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
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
precision, noise, states, evolution
IdentifiersURN: urn:nbn:se:kth:diva-22553DOI: 10.1103/PhysRevA.67.053803ISI: 000183298800091OAI: oai:DiVA.org:kth-22553DiVA: diva2:341251
QC 201005252010-08-102010-08-10Bibliographically approved