53 citations · 234 across the 9 of their papers we have counts for
10 papers
Ferromagnetism in a Repulsive Atomic Fermi Gas with Correlated Disorder
S. Pilati, E. Fratini
We investigate the zero-temperature ferromagnetic behavior of a two-component repulsive Fermi gas in the presence of a correlated random field that represents an optical speckle pa…
Anderson localization in optical lattices with correlated disorder
Elisa Fratini, Sebastiano Pilati
We study the Anderson localization of atomic gases exposed to simple-cubic optical lattices with a superimposed disordered speckle pattern. The two mobility edges in the first band…
Anderson localization of matter waves in quantum-chaos theory
Elisa Fratini, Sebastiano Pilati
We study the Anderson localization of atomic gases exposed to three-dimensional optical speckles by analyzing the statistics of the energy-level spacings. This method allows us to…
Energy of strongly attractive Bose-Fermi mixtures
Andrea Guidini, Elisa Fratini, Gianluca Bertaina +1
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 p…
Zero-Temperature Equation of State and Phase Diagram of Repulsive Fermionic Mixtures
Elisa Fratini, Sebastiano Pilati
We compute the zero-temperature equation of state of a mixture of two fermionic atomic species with repulsive interspecies interactions using second-order perturbation theory. We v…
Bose-Fermi mixtures in the molecular limit
A. Guidini, G. Bertaina, E. Fratini +1
We consider a Bose-Fermi mixture in the molecular limit of the attractive interaction between fermions and bosons. For a boson density smaller or equal to the fermion density, we s…
Single-particle spectral functions in the normal phase of a strongly-attractive Bose-Fermi mixture
Elisa Fratini, Pierbiagio Pieri
We calculate the single-particle spectral functions and quasi-particle dispersions for a Bose-Fermi mixture when the boson-fermion attraction is sufficiently strong to suppress com…
Quantum Monte Carlo Study of a Resonant Bose-Fermi Mixture
G. Bertaina, E. Fratini, S. Giorgini +1
We study a resonant Bose-Fermi mixture at zero temperature by using the fixed-node diffusion Monte Carlo method. We explore the system from weak to strong boson-fermion interaction…
Mass imbalance effect in resonant Bose-Fermi mixtures
E. Fratini, P. Pieri
We consider a homogeneous Bose-Fermi mixture, with the boson-fermion interaction tuned by a Fano-Feshbach resonance, in the presence of mass and density imbalance between the two s…
Pairing and condensation in a resonant Bose-Fermi mixture
Elisa Fratini, Pierbiagio Pieri
We study by diagrammatic methods a mixture of single-component bosons and fermions, with boson-fermion coupling tuned by a Fano-Feshbach resonance. For increasing coupling, the gro…