Pairing instabilities in quasi-two-dimensional Fermi gases
Name
Pietila-2012-Pairing instabilities in quasi-two-dimensional Fermi gases.pdf
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Author(s)
Pietilä, Ville
Pekker, David
Nishida, Yusuke
Demler, Eugene
Date Issued
February 2012
Journal
Physical Review A
Publisher
American Physical Society
Citation
Pietilä, Ville et al. “Pairing Instabilities in Quasi-two-dimensional Fermi Gases.” Physical Review A 85.2 (2012): Web. 26 Apr. 2012. © 2012 American Physical Society
Version
Final published version
Abstract
We study nonequilibrium dynamics of ultracold two-component Fermi gases in low-dimensional geometries after the interactions are quenched from a weakly interacting to a strongly interacting regime. We develop a T-matrix formalism that takes into account the interplay between Pauli blocking and tight confinement in low-dimensional geometries. We employ our formalism to study the formation of molecules in quasi-two-dimensional Fermi gases near Feshbach resonance and show that the rate at which molecules form depends strongly on the transverse confinement. Furthermore, Pauli blocking gives rise to a sizable correction to the binding energy of molecules.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.85.023621
