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cond-mat.str-el2024
On polarons and dimerons in the two-dimensional attractive Hubbard model
Gerard Pascual, Jordi Boronat, Kris Van Houcke
A two-dimensional spin-up ideal Fermi gas interacting attractively with a spin-down impurity in the continuum undergoes, at zero temperature, a first-order phase transition from a…
cond-mat.quant-gas2024★ 4 cited
Temperature-induced miscibility of impurities in trapped Bose gases
G. Pascual, T. Wasak, A. Negretti +2
We study the thermal properties of impurities embedded in a repulsive Bose gas under a harmonic trapping potential. In order to obtain exact structural properties in this inhomogen…