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Modeling the Unconventional Superconducting Properties of Expanded AC Fullerides
M. Capone, M. Fabrizio, C. Castellani +1
The trivalent alkali fullerides AC, where C are a well established family of molecular superconductors. The electron pairing has s-wave symmetry and is due to sta…
Local moments and magnetic order in the two-dimensional Anderson-Mott transition
Maria Elisabetta Pezzoli, Federico Becca, Michele Fabrizio +1
We study the role of electronic correlation in a disordered two-dimensional model by using a variational wave function that can interpolate between Anderson and Mott insulators. Wi…
Real-Time Diagrammatic Monte Carlo for Nonequilibrium Quantum Transport
Marco Schiro`, Michele Fabrizio
We propose a novel approach to nonequilibrium real-time dynamics of quantum impurities models coupled to biased non-interacting leads, such as those relevant to quantum transport i…
Two-level Physics in a Model Metallic Break Junction
P. Lucignano, G. E. Santoro, M. Fabrizio +1
We consider a model inspired by a metal break-junction hypothetically caught at its breaking point, where the non-adiabatic center-of-mass motion of the bridging atom can be treate…
Fermi-surface evolution across the magnetic phase transition in the Kondo lattice model
Nicola Lanata`, Paolo Barone, Michele Fabrizio
We derive, by means of an extended Gutzwiller wavefunction and within the Gutzwiller approximation, the phase diagram of the Kondo lattice model. We find that generically, namely i…
Gutzwiller scheme for electrons and phonons: the half-filled Hubbard-Holstein model
P. Barone, R. Raimondi, M. Capone +2
We analyze the ground-state properties of strongly-correlated electrons coupled with phonons by means of a generalized Gutzwiller wavefunction which includes phononic degrees of fr…