Molecular production at a wide Feshbach resonance in Fermi-gas of cooled atoms

Abstract

The problem of molecular production from degenerate gas of fermions at a wide Feshbach resonance, in a single-mode approximation, is reduced to the linear Landau-Zener problem for operators. The strong interaction leads to significant renormalization of the gap between adiabatic levels. In contrast to static problem the close vicinity of exact resonance does not play substantial role. Two main physical results of our theory is the high sensitivity of molecular production to the initial value of magnetic field and generation of a large BCS condensate distributed over a broad range of momenta in inverse process of the molecule dissociation.

arXiv comment4 pages, no figures

References in corpus (22)

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• Sensitive Detection of Cold Cesium Molecules by Radiative Feshbach Spectroscopy
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• Microscopic Dynamics in a Strongly Interacting Bose-Einstein Condensate
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• Many body generalization of the Landau Zener problem
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• Nonlinear adiabatic passage from fermion atoms to boson molecules
• Production efficiency of Feshbach molecules in fermion systems
• Molecular production in two-component atomic Fermi gases
• Atom-molecule equilibration in a degenerate Fermi gas with resonant interactions
• Boson-like quantum dynamics of association in ultracold Fermi gases

Cited by in corpus (13)

• Non-adiabacity and large flucutations in a many particle Landau Zener problem
• Solvable multistate model of Landau-Zener transitions in cavity QED
• Thirty five classes of solutions of the quantum time-dependent two-state problem in terms of the general Heun functions
• Effects of colored noise on Landau-Zener Transitions: Two and Three-Level Systems
• Landau-Zener extension of the Tavis-Cummings model: structure of the solution
• Landau-Zener Transitions in Chains
• Exact results for models of multichannel quantum nonadiabatic transitions
• Multistate Landau-Zener models with all levels crossing at one point
• Nonadiabatic transitions in exactly solvable quantum mechanical multichannel model: role of level curvature and counterintuitive behavior
• Feshbach molecule production in fermionic atomic gases
• Landau-Zener-Stueckelberg physics with a singular continuum of states
• Observation of collectivity enhanced magnetoassociation of ${}^6$Li in the quantum degenerate regime
• Analytic approach to the Landau-Zener problem in bounded parameter space