Ground-state properties of a dilute Bose-Fermi mixture
Journal Article
·
· Physical Review. A
- Dipartimento di Fisica, Universita di Milano, via Celoria 16, I-20133 Milan (Italy)
- Dipartimento di Fisica, Universita di Trento, and Istituto Nazionale di Fisica della Materia, I-38050 Povo (Italy)
We investigate the properties of a dilute boson-fermion mixture at zero temperature. The ground-state energy of the system is calculated to second order in the Bose-Fermi coupling constant. The Green's function formalism is applied to obtain results for the effect of Bose-Fermi interactions on the spectrum of phonon excitations, the momentum distribution, the condensate fraction, and the superfluid density of the bosonic component. A quantitative discussion of these effects is presented in the case of mixtures with attractive interspecies interaction.
- OSTI ID:
- 20632472
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 66; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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