Results 31 to 40 of about 38,463 (233)

Dark Matter Superfluidity

open access: yesSciPost Physics Lecture Notes, 2022
In these lectures I describe a theory of dark matter superfluidity developed in the last few years. The dark matter particles are axion-like, with masses of order eV. They Bose-Einstein condense into a superfluid phase in the central regions of galaxy
Justin Khoury
doaj   +1 more source

Nonlinear Phenomena of Ultracold Atomic Gases in Optical Lattices: Emergence of Novel Features in Extended States

open access: yesEntropy, 2016
The system of a cold atomic gas in an optical lattice is governed by two factors: nonlinearity originating from the interparticle interaction, and the periodicity of the system set by the lattice. The high level of controllability associated with such an
Gentaro Watanabe   +2 more
doaj   +1 more source

Superfluid Dynamics in Neutron Star Crusts: The Iordanskii Force and Chemical Gauge Covariance

open access: yesUniverse, 2021
We present a geometrical derivation of the relativistic dynamics of the superfluid inner crust of a neutron star. The resulting model is analogous to the Hall-Vinen-Bekarevich-Khalatnikov hydrodynamics for a single-component superfluid at finite ...
Lorenzo Gavassino   +2 more
doaj   +1 more source

Prospects of Detecting Baryon and Quark Superfluidity from Cooling Neutron Stars [PDF]

open access: yes, 2000
Baryon and quark superfluidity in the cooling of neutron stars are investigated. Observations could constrain combinations of the neutron or Lambda-hyperon pairing gaps and the star's mass.
A. Akmal   +42 more
core   +2 more sources

Pion Superfluidity and Meson Properties at Finite Isospin Density

open access: yes, 2009
We investigate pion superfluidity and its effect on meson properties and equation of state at finite temperature and isospin and baryon densities in the frame of standard flavor SU(2) NJL model.
A. B. Migdal   +6 more
core   +1 more source

Nuclear superfluidity for antimagnetic rotation in $^{105}$Cd and $^{106}$Cd

open access: yes, 2013
The effect of nuclear superfluidity on antimagnetic rotation bands in $^{105}$Cd and $^{106}$Cd are investigated by the cranked shell model with the pairing correlations and the blocking effects treated by a particle-number conserving method.
Meng, Jie   +5 more
core   +1 more source

Spin superfluidity and long-range transport in thin-film ferromagnets

open access: yes, 2015
In ferromagnets, magnons may condense into a single quantum state. Analogous to superconductors, this quantum state may support transport without dissipation.
Brataas, Arne   +2 more
core   +1 more source

Distribution of components of jewelry alloy in the bulk of metal castings [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
The process is investigated of stratification of a quaternary jewelry alloy within the height of a vertical metal crucible. The concentration distribution of the alloy components near the surface of castings, as well as the features of the structure ...
N.P. Uglev   +4 more
doaj   +1 more source

Engineering Superfluidity in Electron-Hole Double Layers

open access: yes, 1997
We show that band-structure effects are likely to prevent superfluidity in semiconductor electron-hole double-layer systems. We suggest the possibility that superfluidity could be realized by the application of uniaxial pressure perpendicular to the ...
A. H. MacDonald   +25 more
core   +1 more source

Classical analogies for the force acting on an impurity in a Bose–Einstein condensate

open access: yesNew Journal of Physics, 2020
We study the hydrodynamic forces acting on a small impurity moving in a two-dimensional Bose–Einstein condensate at non-zero temperature. The condensate is modelled by the damped-Gross Pitaevskii (dGPE) equation and the impurity by a Gaussian repulsive ...
Jonas Rønning   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy