Results 21 to 30 of about 558 (111)

Stable double-pair skyrmion in an antiferromagnetic F = 1 Bose–Einstein condensate

New Journal of Physics, 2017
The recent experimental realization of spin-orbit coupling (SOC) in spin-1 ultracold atoms opens up an interesting avenue for exploring new quantum states and novel quantum phenomena in large-spin systems.
Yong-Kai Liu, Shi-Jie Yang
doaj   +1 more source

First and second sound of a unitary Fermi gas in highly oblate harmonic traps

New Journal of Physics, 2014
We theoretically investigate first and second sound modes of a unitary Fermi gas trapped in a highly oblate harmonic trap at finite temperatures. Following the idea by Stringari and co-workers (2010 Phys. Rev. Lett.
Hui Hu, Paul Dyke, Chris J Vale, Xia-Ji Liu   +3 more
doaj   +1 more source

Various topological Mott insulators and topological bulk charge pumping in strongly-interacting boson system in one-dimensional superlattice

New Journal of Physics, 2017
In this paper, we study a one-dimensional boson system in a superlattice potential. This system is experimentally feasible by using ultracold atomic gases, and attracts much attention these days.
Yoshihito Kuno, Keita Shimizu, Ikuo Ichinose   +2 more
doaj   +1 more source

Extended Thomas-Fermi Density Functional for the Unitary Fermi Gas

, 2010
We determine the energy density $\xi (3/5) n \epsilon_F$ and the gradient correction $\lambda \hbar^2(\nabla n)^2/(8m n)$ of the extended Thomas-Fermi (ETF) density functional, where $n$ is number density and $\epsilon_F$ is Fermi energy, for a trapped ...
D. A. Kirzhnits, D. A. Kirzhnits, E. Lipparini, Flavio Toigo, G. E. Volovik, Luca Salasnich, P. Ring, R. G. Parr, Y. E. Kim   +8 more
core   +1 more source

Numerical investigation of the radial quadrupole and scissors modes in trapped gases [PDF]

, 2012
The analytical expressions for the frequency and damping of the radial quadrupole and scissors modes, as obtained from the method of moments, are limited to the harmonic potential.
Wu, Lei, Zhang, Yonghao
core   +1 more source

Strongly magnetized iron white dwarfs and the total lepton number violation

, 2013
The influence of a neutrinoless electron to positron conversion on a cooling of strongly magnetized iron white dwarfs is studied.Comment: 4 pages, contribution to the conference MEDEX'13, Prague, June 11-14 ...
Adam, Jr., J., Belyaev, V. B., Ricci, P., Simkovic, F., Tater, M., Truhlik, E.   +5 more
core   +1 more source

Topological phase transitions in ultra-cold Fermi superfluids: the evolution from BCS to BEC under artificial spin-orbit fields

, 2011
We discuss topological phase transitions in ultra-cold Fermi superfluids induced by interactions and artificial spin orbit fields. We construct the phase diagram for population imbalanced systems at zero and finite temperatures, and analyze spectroscopic
C. A. R. Sá de Melo, E. M. Lifshitz, E. M. Lifshitz, G. E. Volovik, I. M. Lifshitz, Kangjun Seo, Li Han, M. Nakahara   +7 more
core   +1 more source

Collective Motion of Polarized Dipolar Fermi Gases in the Hydrodynamic Regime [PDF]

, 2010
Recently, a seminal STIRAP experiment allowed the creation of 40K-87Rb molecules in the rovibrational ground state [K.-K. Ni et al., Science 322, 231 (2008)]. In order to describe such a polarized dipolar Fermi gas in the hydrodynamic regime, we work out
Aristeu R. P. Lima, Axel Pelster, P. Ring   +2 more
core   +2 more sources

Two-dimensional quasi-ideal Fermi gas with Rashba spin-orbit coupling

, 2013
We investigate the zero-temperature properties of a quasi-ideal Fermi gas with Rashba spin-orbit coupling. We find that the spin-orbit term strongly affects the speeds of zero sound and first sound in the Fermi gas, due to the presence of a third-order ...
Salasnich, Luca
core   +1 more source

A Universal Energy Functional for Trapped Fermi Gases with Large Scattering Length

, 2011
Yoram Alhassid conjectured that the total energy of a harmonically trapped two-component Fermi gas with large scattering length is a linear functional of the occupation probabilities of single-particle energy eigenstates.
Tan, Shina
core   +1 more source