We discuss how approximate theories for Bose-Fermi mixtures recover in the molecular limit the expected expression for Fermi-Fermi mixtures of molecules and unpaired fermions. In particular, we compare the energy of the system resulting from a T-matrix diagrammatic approach with that obtained with Variational and Fixed-Node Diffusion Quantum Monte Carlo methods.
Energy of strongly attractive Bose-Fermi mixtures / A. Guidini, E. Fratini, G. Bertaina, P. Pieri. - In: THE EUROPEAN PHYSICAL JOURNAL. SPECIAL TOPICS. - ISSN 1951-6355. - 224:3(2015 Apr 09), pp. 539-543. ((Intervento presentato al 7. convegno Quantum gases and quantum coherence tenutosi a Levico nel 2014 [10.1140/epjst/e2015-02384-0].
Energy of strongly attractive Bose-Fermi mixtures
G. BertainaPenultimo
;
2015
Abstract
We discuss how approximate theories for Bose-Fermi mixtures recover in the molecular limit the expected expression for Fermi-Fermi mixtures of molecules and unpaired fermions. In particular, we compare the energy of the system resulting from a T-matrix diagrammatic approach with that obtained with Variational and Fixed-Node Diffusion Quantum Monte Carlo methods.
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