68 citations · 246 across the 8 of their papers we have counts for
8 papers
Finite temperature ferromagnetic transition in coherently coupled Bose gases
Arko Roy, Miki Ota, Franco Dalfovo +1
A paramagnetic-ferromagnetic quantum phase transition is known to occur at zero temperature in a two-dimensional coherently-coupled Bose mixture of dilute ultracold atomic gases pr…
Finite temperature spin dynamics of a two-dimensional Bose-Bose atomic mixture
Arko Roy, Miki Ota, Alessio Recati +1
We examine the role of thermal fluctuations in uniform two-dimensional binary Bose mixtures of dilute ultracold atomic gases. We use a mean-field Hartree-Fock theory to derive anal…
Thermodynamics of dilute Bose gases: Beyond mean-field theory for binary mixtures of Bose-Einstein condensate
Miki Ota, Stefano Giorgini
We study the thermodynamic properties of binary Bose mixtures, by developing a beyond mean-field Popov theory which properly includes the effects of quantum and thermal fluctuation…
Beyond Lee-Huang-Yang description of self-bound Bose mixtures
Miki Ota, Grigori E. Astrakharchik
We investigate the properties of self-bound ultradilute Bose-Bose mixtures, beyond the Lee-Huang-Yang description. Our approach is based on the determination of the beyond mean-fie…
Magnetic phase transition in a mixture of two interacting Bose gases at finite temperature
Miki Ota, Stefano Giorgini, Sandro Stringari
The miscibility condition for a binary mixture of two interacting Bose-Einstein condensates is shown to be deeply affected by interaction driven thermal fluctuations. These give ri…
Collisionless sound in a uniform two-dimensional Bose gas
Miki Ota, Fabrizio Larcher, Franco Dalfovo +3
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.…
Second sound in 2D Bose gas: from the weakly interacting to the strongly interacting regime
Miki Ota, Sandro Stringari
Using Landau's theory of two-fluid hydrodynamics, we investigate first and second sound propagating in a two-dimensional Bose gas. We study the temperature and interaction dependen…
Local Photoemission Spectra and Effects of Spatial Inhomogeneity in the BCS-BEC Crossover Regime of a Trapped Ultracold Fermi Gas
Miki Ota, Hiroyuki Tajima, Ryo Hanai +2
We theoretically investigate single particle excitations in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein-Condensation) crossover regime of an ultracold Fermi gas. Includi…