https://doi.org/10.1140/epjst/e2015-02379-9
Regular Article
Quantum Monte Carlo study of the indirect Pauli exclusion effect in Bose-Fermi mixtures
1 Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, 20133 Milano, Italy
2 School of Science and Technology, Physics Division, University of Camerino, via Madonna delle Carceri 9, 62032 Camerino, Italy
a e-mail: gianluca.bertaina@unimi.it
Received: 15 October 2014
Revised: 19 February 2015
Published online: 9 April 2015
We study the momentum distributions of a three-dimensional resonant Bose-Fermi mixture in the molecular limit at zero temperature. For concentration of the bosons with respect to the fermions less or equal to one, each boson is bound to a fermion and the system is composed of fermionic molecules plus excess fermions. Not only the bosonic condensate fraction goes to zero, signaling a quantum phase transition towards a normal phase, but a finite region of low momenta is depleted, depending on the concentration. This phenomenon is named indirect Pauli exclusion effect and is demonstrated via Fixed-Node Diffusion Monte Carlo simulations and T-matrix calculations.
© EDP Sciences, Springer-Verlag, 2015