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Conditional preparation of arbitrary superpositions of atomic Dicke states

SYSNO ASEP	0337496
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Conditional preparation of arbitrary superpositions of atomic Dicke states
Title	Podmíněná příprava libovolných superpozic Dickeho stavů atomů
Author(s)	Lemr, Karel (FZU-D)_RID Fiurášek, J. (CZ)
Source Title	Physical Review. A. - : American Physical Society - ISSN 1050-2947 Roč. 79, č. 4 (2009), 043808/1-043808/9
Number of pages	9 s.
Language	eng - English
Country	US - United States
Keywords	atomic Dicke states ; highly nonclassical states
Subject RIV	BH - Optics, Masers, Lasers
R&D Projects	1M06002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100522 - FZU-D (2005-2011)
UT WOS	000265947500064
EID SCOPUS	65549113090
DOI	10.1103/PhysRevA.79.043808
Annotation	We propose an experimentally accessible procedure for conditional preparation of highly non-classical states of collective spin of an atomic ensemble. The quantum state engineering is based on a combination of QND interaction between atoms and light previously prepared in a non-Gaussian state using photon subtraction from squeezed vacuum beam, homodyne detection on the output light beam, and a coherent displacement of atomic state. The procedure is capable of non-deterministic preparation of a wide class of superpositions of atomic Dicke states. We present several techniques to optimize the performance of the protocol and maximize the trade-off between fidelity of prepared state and success probability of the scheme.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2010

Number of the records: 1