88 citations · 232 across the 10 of their papers we have counts for
10 papers
Interplay between the single particle and collective features in the boson fermion model
T. Domanski, J. Ranninger
We study the interplay between the single particle and fermion pair features in the boson fermion model, both above and below the transition temperature , using the flow equ…
From local to macroscopic coherence in systems with composite quasi-particles
J. Ranninger, A. Romano
Strongly interacting systems are characterized by heavily dressed entities with internal degrees of freedom, which, on a local level, can be described in terms of coherent quantum…
Renormalization group approach to the interacting boson fermion systems
T. Domanski, J. Ranninger
We study a pseudogap region of the mixed boson fermion system using a recent formulation of the renormalization group technique through the set of infinitesimal unitary transformat…
Superfluidity of bosons on a deformable lattice
G. Jackeli, J. Ranninger
We study the superfluid properties of a system of interacting bosons on a lattice which, moreover, are coupled to the vibrational modes of this lattice, treated here in terms of Ei…
Non-linear feedback effects in coupled Boson-Fermion systems
T. Domanski, J. Ranninger
We address ourselves to a class of systems composed of two coupled subsystems without any intra-subsystem interaction: itinerant Fermions and localized Bosons on a lattice. Switchi…
Metal-insulator crossover in the Boson-Fermion model in infinite dimensions
J. -M. Robin, A. Romano, J. Ranninger
The Boson-Fermion model, describing a mixture of tightly bound electron pairs and quasi-free electrons hybridized with each other via a charge exchange term, is studied in the limi…