caa a22 4500 445866853 CHVBK 20180317145500.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1140/epjd/e2011-20382-x doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20382-x BCS and BEC p-wave pairing in Bose-Fermi gases [Elektronische Daten] [F. Matera, A. Dellafiore] The pairing of fermionic atoms in a mixture of atomic fermion and boson gases at zero temperature is investigated. The attractive interaction between fermions, that can be induced by density fluctuations of the bosonic background, can give rise to a superfluid phase in the Fermi component of the mixture. The atoms of both species are assumed to be in only one internal state, so that the pairing of fermions is effective only in odd-l channels. No assumption about the value of the ratio between the Fermi velocity and the sound velocity in the Bose gas is made in the derivation of the energy gap equation. The gap equation is solved without any particular ansatz for the pairing field or the effective interaction. The p-wave superfluidity is studied in detail. By increasing the strength and/or decreasing the range of theeffective interaction a transition of the fermion pairing regime, from the Bardeen-Cooper-Schrieffer state to a system of tightly bound couples can be realized. These composite bosons behave as a weakly-interacting Bose-Einstein condensate. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Matera F. Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Via G. Sansone 1, 50019, Sesto Fiorentino, Firenze, Italy aut Dellafiore A. Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Via G. Sansone 1, 50019, Sesto Fiorentino, Firenze, Italy aut The European Physical Journal D Springer-Verlag 65/3(2011-12-01), 515-522 1434-6060 65:3<515 2011 65 10053 https://doi.org/10.1140/epjd/e2011-20382-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20382-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matera F. Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Via G. Sansone 1, 50019, Sesto Fiorentino, Firenze, Italy aut NATIONALLICENCE 700 1- Dellafiore A. Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, Via G. Sansone 1, 50019, Sesto Fiorentino, Firenze, Italy aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 65/3(2011-12-01), 515-522 1434-6060 65:3<515 2011 65 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer