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Correlations in photon-numbers and integrated intensities in parametric processes involving three optical fields
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SYSNO ASEP 0337420 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Correlations in photon-numbers and integrated intensities in parametric processes involving three optical fields Title Korelace počtu fotonů a integrovaných intenzit v parametrických procesech tří optických polí Author(s) Peřina st., Jan (FZU-D)
Křepelka, Jaromír (FZU-D)
Peřina, Jan (FZU-D) RID, SAI, ORCID
Bondani, M. (IT)
Allevi, A. (IT)
Andreoni, A. (IT)Source Title European Physical Journal D. - : Springer - ISSN 1434-6060
Roč. 53, č. 3 (2009), 373-382Number of pages 10 s. Language eng - English Country DE - Germany Keywords parametric process ; three-mode state ; sub-Poisson statistics ; conditional measurement Subject RIV BH - Optics, Masers, Lasers R&D Projects KAN301370701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) 1M06002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100522 - FZU-D (2005-2011) UT WOS 000266566600014 DOI 10.1140/epjd/e2009-00136-3 Annotation Two strongly-pumped parametric interactions are simultaneously realized in a single nonlinear crystal in order to generate three strongly correlated optical fields. By combining together the outputs of two of the three detectors measuring intensities of the generated fields, we obtain the joint photocount statistics between the single field and the sum of the other two. We apply a microscopic quantum theory developed earlier to determine the joint photon-number distribution and the joint quasi-distributions of integrated intensities and prove nonclassical nature of the three-mode state. Finally, by performing a conditional measurement on the single field, we obtain a state endowed with a sub-Poissonian statistics, as testified by the analysis of the conditional Fano factor. The role of quantum detection efficiencies in this conditional state-preparation method is discussed in detail. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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