Sound modes in collisional superfluid Bose gases
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abed0c
Abstract: We theoretically investigate sound modes in a weakly-interacting collisional Bose gas in D dimensions. Using the Landau’s two-fluid hydrodynamics and working within the Bogoliubov theory, we observe the hybridization of the first and second sound… read more here.
Keywords: bose; collisional superfluid; modes collisional; sound modes ... See more keywords
Two-dimensional Bose and Fermi gases beyond weak coupling
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/aa79ac
Abstract: Using a formalism based on the two-body S-matrix we study two-dimensional Bose and Fermi gases with both attractive and repulsive interactions. Approximate analytic expressions, valid at weak coupling and beyond, are developed and applied to… read more here.
Keywords: bose fermi; two dimensional; fermi gases; weak coupling ... See more keywords
Thermodynamic equivalence of two-dimensional imperfect attractive Fermi and repulsive Bose gases
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.063627
Abstract: We consider two-dimensional imperfect attractive Fermi and repulsive Bose gases consisting of spinless point particles whose total interparticle interaction energy is represented by $a N^2/2 V$ with $a=-a_{F}\leq 0$ for fermions, and $a=a_{B}\geq 0$ for… read more here.
Keywords: attractive fermi; imperfect attractive; two dimensional; fermi ... See more keywords
Collisionless Sound in a Uniform Two-Dimensional Bose Gas.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.145302
Abstract: Using linear response theory within the random phase approximation, we investigate the propagation of sound in a uniform two dimensional (2D) Bose gas in the collisionless regime. We show that the sudden removal of a… read more here.
Keywords: sound uniform; uniform two; two dimensional; bose gas ... See more keywords
Oscillating Solitons and ac Josephson Effect in Ferromagnetic Bose-Bose Mixtures
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review Letters"
DOI: 10.1103/physrevlett.130.220403
Abstract: Close to the demixing transition, the degree of freedom associated to relative density fluctuations of a two-component Bose-Einstein condensate is described by a non-dissipative Landau-Lifshitz equation. In the quasi one-dimensional weakly immiscible case, this mapping… read more here.
Keywords: solitons josephson; josephson; josephson effect; bose ... See more keywords
Two-Dimensional Quantum Droplets in Binary Dipolar Bose-Bose Mixture
Sign Up to like & getrecommendations! Published in 2023 at "Photonics"
DOI: 10.3390/photonics10040405
Abstract: We study two-dimensional (2D) isotropic quantum droplets (QDs) in dipolar binary Bose–Einstein condensates (BECs). The QDs are supported by the competition between the 2D form of the Lee-Huang-Yang (LHY) term and the isotropic dipole-dipole interactions… read more here.
Keywords: two dimensional; quantum droplets; lhy term; bose ... See more keywords