Title: Normal-superfluid interface scattering for polarized fermion gases
Authors: Van Schaeybroeck, Bert ×
Lazarides, Achilleas #
Issue Date: 2-May-2007
Publisher: American Physical Society
Series Title: Physical Review Letters vol:98 issue:17 pages:1-4
Article number: 170402
Abstract: We argue that, for the recent experiments with imbalanced fermion gases, a temperature difference may occur between the normal (N) and the gapped superfluid (SF) phase. Using the mean-field formalism, we study particle scattering off the N-SF interface from the deep BCS to the unitary regime. We show that the thermal conductivity across the interface drops exponentially fast with increasing h/k_{B}T, where h is the chemical potential imbalance. This implies a blocking of thermal equilibration between the N and the SF phase. We also provide a possible mechanism for the creation of gap oscillations [Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)-like states] as seen in recent studies on these systems.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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