Results 11 to 20 of about 1,994 (53)

Dark Continuum in the Spectral Function of the Resonant Fermi Polaron

open access: yes, 2016
We present controlled numerical results for the ground state spectral function of the resonant Fermi polaron in three dimensions. We establish the existence of a "dark continuum"---a region of anomalously low spectral weight between the narrow polaron ...
Goulko, Olga   +3 more
core   +1 more source

Fluid Dynamics and Viscosity in Strongly Correlated Fluids

open access: yes, 2014
We review the modern view of fluid dynamics as an effective low energy, long wavelength theory of many body systems at finite temperature. We introduce the concept of a nearly perfect fluid, defined by a ratio $\eta/s$ of shear viscosity to entropy ...
Schaefer, Thomas
core   +1 more source

Implications of hydrodynamic fluctuations on the minimum shear viscosity of the dilute Fermi gas at unitarity

open access: yes, 2013
We confirm and expand on work by Chafin and Schaefer on hydrodynamic fluctuations in the unitary Fermi gas. Using the result for the equation of state from a recent MIT experiment, we derive lower bounds for \eta/n and \eta/s as a function of temperature.
Romatschke, Paul, Young, Ryan Edward
core   +1 more source

Hofstadter problem in higher dimensions [PDF]

open access: yes, 2014
We investigate some generalizations of the Hofstadter problem to higher dimensions with Abelian and non-Abelian gauge field configurations. We numerically show the hierarchical structure in the energy spectra with several lattice models.
Kimura, Taro
core   +4 more sources

Detecting fractional Chern insulators through circular dichroism

open access: yes, 2019
Great efforts are currently devoted to the engineering of topological Bloch bands in ultracold atomic gases. Recent achievements in this direction, together with the possibility of tuning inter-particle interactions, suggest that strongly-correlated ...
Goldman, Nathan, Repellin, Cécile
core   +1 more source

Evolution from few- to many-body physics in one-dimensional Fermi systems: One- and two-body density matrices, and particle-partition entanglement [PDF]

open access: yes, 2017
We study the evolution from few- to many-body physics of fermionic systems in one spatial dimension with attractive pairwise interactions. We determine the detailed form of the momentum distribution, the structure of the one-body density matrix, and the ...
Braun, Jens   +3 more
core   +3 more sources

Resonant three-body physics in two spatial dimensions

open access: yes, 2011
We discuss the three-body properties of identical bosons exhibiting large scattering length in two spatial dimensions. Within an effective field theory for resonant interactions, we calculate the leading non-universal corrections from the two-body ...
Hammer, H. -W., Helfrich, K.
core   +1 more source

Pauli blocking effects and Cooper triples in three-component Fermi gases

open access: yes, 2012
We investigate the effect of Pauli blocking on universal two- and three-body states in the medium. Their corresponding energies are extracted from the poles of two- and three-body in-medium scattering amplitudes.
A. L. Fetter   +3 more
core   +1 more source

Transport measurement of the orbital Kondo effect with ultracold atoms

open access: yes, 2016
The Kondo effect in condensed-matter systems manifests itself most sharply in their transport measurements. Here we propose an analogous transport signature of the orbital Kondo effect realized with ultracold atoms.
Nishida, Yusuke
core   +1 more source

Semi-synthetic zigzag optical lattice for ultracold bosons

open access: yes, 2016
We consider a one-dimensional "zigzag" lattice, pictured as a two-site wide single strip taken from a triangular lattice, affected by a tunable homogeneous magnetic flux piercing its triangular plaquettes. We focus on a semi-synthetic lattice produced by
Anisimovas, Egidijus   +5 more
core   +1 more source

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