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16 April 2024

» arxiv » physics/0406077

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Collective molecule formation in a degenerate Fermi gas via a Feshbach resonance
Juha Javanainen ; Marijan Kostrun ; Yi Zheng ; Andrew Carmichael ; Uttam Shrestha ; Patrick J. Meinel ; Matt Mackie ; Olavi Dannenberg ; Kalle-Antti Suominen ;
Date:	16 Jun 2004
Journal:	Phys. Rev. Lett. 92, 200402 (2004) DOI: 10.1103/PhysRevLett.92.200402
Subject:	Atomic Physics; Soft Condensed Matter; Statistical Mechanics; Chemical Physics \| physics.atom-ph cond-mat.soft cond-mat.stat-mech physics.chem-ph quant-ph
Abstract:	We model collisionless collective conversion of a degenerate Fermi gas into bosonic molecules via a Feshbach resonance, treating the bosonic molecules as a classical field and seeding the pairing amplitudes with random phases. A dynamical instability of the Fermi sea against association into molecules initiates the conversion. The model qualitatively reproduces several experimental observations {[Regal et al., Nature {f 424}, 47 (2003)]}. We predict that the initial temperature of the Fermi gas sets the limit for the efficiency of atom-molecule conversion.
Source:	arXiv, physics/0406077
Other source:	[GID 736148] pmid15169331
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