Weakly-interacting Bose-Bose mixtures from the functional renormalisation group
Quantum Gases
2022-01-21 v2
Abstract
We provide a detailed presentation of the functional renormalisation group (FRG) approach for weakly-interacting Bose-Bose mixtures, including a complete discussion on the RG equations. To test this approach, we examine thermodynamic properties of balanced three-dimensional Bose-Bose gases at zero and finite temperatures and find a good agreement with related works. We also study ground-state energies of repulsive Bose polarons by examining mixtures in the limit of infinite population imbalance. Finally, we discuss future applications of the FRG to novel problems in Bose-Bose mixtures and related systems.
Cite
@article{arxiv.2112.06585,
title = {Weakly-interacting Bose-Bose mixtures from the functional renormalisation group},
author = {Felipe Isaule and Ivan Morera},
journal= {arXiv preprint arXiv:2112.06585},
year = {2022}
}
Comments
36 pages, 9 figures. Accepted version