Results 51 to 60 of about 558 (111)
Decay of polarons and molecules in a strongly polarized Fermi gas
, 2010 The ground state of an impurity immersed in a Fermi sea changes from a polaron to a molecule as the interaction strength is increased. We show here that the coupling between these two states is strongly suppressed due to a combination of phase space ...
G. Baym +6 more
core +1 more source
Traveling Dark Solitons in Superfluid Fermi Gases
, 2011 Families of dark solitons exist in superfluid Fermi gases. The energy-velocity dispersion and number of depleted particles completely determines the dynamics of dark solitons on a slowly-varying background density.
Joachim Brand +2 more
core +1 more source
Three-body Recombination of Lithium-6 Atoms with Large Negative Scattering Lengths
, 2009 The 3-body recombination rate at threshold for distinguishable atoms with large negative pair scattering lengths is calculated in the zero-range approximation. The only parameters in this limit are the 3 scattering lengths and the Efimov parameter, which
Daekyoung Kang +5 more
core +1 more source
Few interacting fermions in one-dimensional harmonic trap
, 2013 We study spin-1/2 fermions, interacting via a two-body contact potential, in a one-dimensional harmonic trap. Applying exact diagonalization, we investigate their behavior at finite interaction strength, and discuss the role of the ground-state ...
Dutta, Omjyoti +3 more
core +1 more source
, 2012 To realize non-Abelian s-wave topological superfluid (TS) of cold Fermi gases, generally a Zeeman magnetic field larger than superfluid pairing gap is necessary.
Beibing Huang +5 more
core +1 more source
Superdiffusive nonequilibrium motion of an impurity in a Fermi sea
, 2012 We treat the nonequilibrium motion of a single impurity atom in a low-temperature single-species Fermi sea, interacting via a contact interaction. In the nonequilibrium regime, the impurity does a superdiffusive geometric random walk where the typical ...
Huse, David A., Kim, Hyungwon
core +1 more source
BCS-BEC Crossover and Topological Phase Transition in 3D Spin-Orbit Coupled Degenerate Fermi Gases
, 2011 We investigate the BCS-BEC crossover in three dimensional degenerate Fermi gases in the presence of spin-orbit coupling (SOC) and Zeeman field. We show that the superfluid order parameter destroyed by a large Zeeman field can be restored by the SOC. With
Gong, Ming +2 more
core +1 more source
Exact Relations for a Strongly-interacting Fermi Gas from the Operator Product Expansion
, 2008 The momentum distribution in a Fermi gas with two spin states and a large scattering length has a tail that falls off like 1/k^4 at large momentum k, as pointed out by Shina Tan.
D. J. Amit +4 more
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Interplay of the pseudogap and the BCS gap for heteropairs in $^{40}$K-$^6$Li mixture
, 2016 The description of heteropairs like $^{40}$K-$^6$Li near and in the superconducting state requires a fully selfconsistent theory [see Hanai and Ohashi, Phys. Rev. A 90, 043622 (2014)].
Berthod, C., Lipavský, P.
core +2 more sources
Realization of a Resonant Fermi Gas with a Large Effective Range
, 2011 We have measured the interaction energy and three-body recombination rate for a two-component Fermi gas near a narrow Feshbach resonance and found both to be strongly energy dependent.
Hazlett, E. L. +3 more
core +1 more source