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SEMINAR + WEBINAR ANNOUNCEMENT

“Mixed bubbles in Bose-Bose mixtures”

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23/09/2020 de 15:00 a 16:00 (Europe/Madrid / UTC200)

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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