Results 11 to 20 of about 1,946 (44)

Liberating Efimov physics from three dimensions

open access: yes, 2011
When two particles attract via a resonant short-range interaction, three particles always form an infinite tower of bound states characterized by a discrete scaling symmetry. It has been considered that this Efimov effect exists only in three dimensions.
A. Trenkwalder   +39 more
core   +1 more source

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

Overlaps after quantum quenches in the sine-Gordon model [PDF]

open access: yes, 2017
We present a numerical computation of overlaps in mass quenches in sine-Gordon quantum field theory using truncated conformal space approach (TCSA). To improve the cut-off dependence of the method, we use a novel running coupling definition which has a ...
Horvath, D. X., Takacs, G.
core   +3 more sources

Gauge-invariant implementation of the Abelian Higgs model on optical lattices

open access: yes, 2015
We present a gauge-invariant effective action for the Abelian Higgs model (scalar electrodynamics) with a chemical potential $\mu$ on a 1+1 dimensional lattice.
Bazavov, Alexei   +4 more
core   +2 more sources

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

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

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

Width of the confinement-induced resonance in a quasi-one-dimensional trap with transverse anisotropy

open access: yes, 2017
We theoretically study the width of the s-wave confinement-induced resonance (CIR) in quasi-one-dimensional atomic gases under tunable transversely anisotropic confinement.
Guo, Guang-Can   +3 more
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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