Quantum-field dynamics of expanding and contracting Bose-Einstein condensates

Wuester, S., Dabrowska-Wuester, B., Scott, S. M., Close, J. D. and Savage, C. M. (2008) Quantum-field dynamics of expanding and contracting Bose-Einstein condensates. Physical Review A, 77 2: 023619-1-023619-9. doi:10.1103/PhysRevA.77.023619

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Author Wuester, S.
Dabrowska-Wuester, B.
Scott, S. M.
Close, J. D.
Savage, C. M.
Title Quantum-field dynamics of expanding and contracting Bose-Einstein condensates
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2008-02-19
Sub-type Article (original research)
DOI 10.1103/PhysRevA.77.023619
Open Access Status File (Publisher version)
Volume 77
Issue 2
Start page 023619-1
End page 023619-9
Total pages 9
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Subject 3107 Atomic and Molecular Physics, and Optics
Abstract We analyze the dynamics of quantum statistics in a harmonically trapped Bose-Einstein condensate, whose two-body interaction strength is controlled via a Feshbach resonance. From an initially noninteracting coherent state, the quantum field undergoes Kerr squeezing, which can be qualitatively described with a single mode model. To render the effect experimentally accessible, we propose a homodyne scheme, based on two hyperfine components, which converts the quadrature squeezing into number squeezing. The scheme is numerically demonstrated using a two-component Hartree-Fock-Bogoliubov formalism.
Keyword Phase
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mathematics and Physics
 
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Created: Tue, 31 Mar 2009, 00:41:10 EST by Jo Hughes on behalf of School of Mathematics & Physics