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Pairing instabilities in quasi-two-dimensional Fermi gases

Pietilä, Ville and Pekker, David and Nishida, Yusuke and Demler, Eugene (2012) Pairing instabilities in quasi-two-dimensional Fermi gases. Physical Review A, 85 (2). 023621. ISSN 1050-2947. http://resolver.caltech.edu/CaltechAUTHORS:20120313-115908749

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevA.85.023621DOIUNSPECIFIED
http://pra.aps.org/abstract/PRA/v85/i2/e023621PublisherUNSPECIFIED
Additional Information:© 2012 American Physical Society. Received 3 October 2011; published 14 February 2012. We would like to thank L. Radzihovsky, M. Köhl, and W. Zwerger for insightful discussions. This work was supported by the Academy of Finland (V.P.), the Army Research Office with funding from the DARPA OLE program, Harvard-MIT CUA, NSF Grant No. DMR-07-05472, AFOSR Quantum Simulation MURI, AFOSR MURI on Ultracold Molecules, and the ARO-MURI on Atomtronics.
Group:Institute for Quantum Information and Matter, IQIM
Funders:
Funding AgencyGrant Number
Academy of FinlandUNSPECIFIED
Army Research Office (ARO) DARPA OLE programUNSPECIFIED
Harvard-MIT CUAUNSPECIFIED
NSFDMR-07-05472
AFOSR Quantum Simulation MURIUNSPECIFIED
AFOSR MURI on Ultracold MoleculesUNSPECIFIED
ARO-MURI on AtomtronicsUNSPECIFIED
Classification Code:PACS: 03.75.Ss, 05.30.Fk, 03.65.Nk, 67.85.-d
Record Number:CaltechAUTHORS:20120313-115908749
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120313-115908749
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29702
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:14 Mar 2012 15:10
Last Modified:26 Dec 2012 14:56

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