Results 1 to 10 of about 1,994 (53)

Quantum Monte Carlo study of quasi-one-dimensional Bose gases [PDF]

open access: yes, 2003
We study the behaviour of quasi-one-dimensional (quasi-1D) Bose gases by Monte Carlo techniques, i.e. by the variational Monte Carlo, the diffusion Monte Carlo and the fixed-node diffusion Monte Carlo techniques.
G. Astrakharchik   +3 more
semanticscholar   +2 more sources

Phase structure of mass- and spin-imbalanced unitary Fermi gases [PDF]

open access: yes, 2015
We study the phase diagram of mass- and spin-imbalanced unitary Fermi gases, in search for the emergence of spatially inhomogeneous phases. To account for fluctuation effects beyond the mean-field approximation, we employ renormalization group techniques.
Braun, Jens   +2 more
core   +3 more sources

Contact interaction in an unitary ultracold Fermi gas [PDF]

open access: yes, 2015
An ultracold Fermi atomic gas at unitarity presents universal properties that in the diluted limit can be well described by a contact interaction. By employing a guide function with correct boundary conditions and making simple modifications to the ...
Gandolfi, S.   +3 more
core   +2 more sources

Energy spectra of two interacting fermions with spin-orbit coupling in a harmonic trap [PDF]

open access: yes, 2014
We explore the two-body spectra of spin-$1/2$ fermions in isotropic harmonic traps with external spin-orbit potentials and short range two-body interactions.
Luu, Thomas C., Schillaci, Cory D.
core   +3 more sources

Partial breakdown of quantum thermalization in a Hubbard-like model [PDF]

open access: yes, 2017
We study the possible breakdown of quantum thermalization in a model of itinerant electrons on a one-dimensional chain without disorder, with both spin and charge degrees of freedom.
Fisher, Matthew P. A.   +2 more
core   +2 more sources

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

Non-Thermal Fixed Point in a Holographic Superfluid [PDF]

open access: yes, 2015
We study the far-from-equilibrium dynamics of a (2+1)-dimensional superfluid at finite temperature and chemical potential using its holographic description in terms of a gravitational system in 3+1 dimensions.
Ewerz, Carlo   +3 more
core   +2 more sources

Hydrodynamic fluctuations and the minimum shear viscosity of the dilute Fermi gas at unitarity

open access: yes, 2013
We study hydrodynamic fluctuations in a non-relativistic fluid. We show that in three dimensions fluctuations lead to a minimum in the shear viscosity to entropy density ratio $\eta/s$ as a function of the temperature.
A. Onuki   +5 more
core   +1 more source

Quasi Elastic Electron Scattering in Uranium-238 (Longitudinal, Sum-Rule, Pion, Nuclear, Structure).

open access: yes, 1984
Electron sca t te r ing data from the MIT-Bates l i n e a r acce le ra to r were used to der ive lo ng i tud ina l and transverse response funct ions (SL , Sj) f o r the q u a s i e la s t i c (QE) kinematic region from uranium ta rg e ts .
C. Blatchley
semanticscholar   +1 more source

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

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