SEMINAR + WEBINAR ANNOUNCEMENT

SEMINAR + WEBINAR ANNOUNCEMENT

Wednesday, 23rd of September 2020 at 15:00
UPC Campus Nord B4 212 +
https://meet.google.com/nsu-ejyi-taf

Dmitry Petrov

Université Paris-Saclay, CNRS, LPTMS, 91405, Orsay, France

“Mixed bubbles in Bose-Bose mixtures”

Repulsive Bose-Bose mixtures are known to either mix or phase-separate into pure components. Here we predict a mixed-bubble regime in which bubbles of the mixed phase coexist with a pure phase of one of the components. This is a beyond-mean-field effect which occurs for unequal masses or unequal intraspecies coupling constants and is due to a competition between the mean-field term, quadratic in densities, and a nonquadratic beyond-mean-field correction. We find parameters of the mixed-bubble regime in all dimensions and discuss implications for current experiments.

[1] arXiv:2008.05870