611 citations
- University of CataniaIT114 papers
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- Centre National de la Recherche ScientifiqueFR41 papers
- National University of SingaporeSG32 papers
- University of Milano-BicoccaIT31 papers
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12 papers · 1 filter
Shape resonance at a Lifshitz transition for high temperature superconductivity in multiband superconductors
Davide Innocenti, Antonio Valletta, Antonio Bianconi
We discuss the shape resonance in the superconducting gaps of a two band superconductor by tuning the chemical potential at a Lifshitz transition for Femi surface neck collapsing a…
Atomistic quantum transport modeling of metal-graphene nanoribbon heterojunctions
I. Deretzis, G. Fiori, G. Iannaccone +1
We calculate quantum transport for metal-graphene nanoribbon heterojunctions within the atomistic self-consistent Schrödinger/Poisson scheme. Attention is paid on both the chemical…
Hidden XY structure of the bond-charge Hubbard model
Marco Roncaglia, Cristian Degli Esposti Boschi, Arianna Montorsi
The repulsive one-dimensional Hubbard model with bond-charge interaction (HBC) in the superconducting regime is mapped onto the spin-1/2 XY model with transverse field. We calculat…
Dynamical polarization of graphene under strain
F. M. D. Pellegrino, G. G. N. Angilella, R. Pucci
We study the dependence of the plasmon dispersion relation of graphene on applied uniaxial strain. Besides electron correlation at the RPA level, we also include local field effect…
Resonant and crossover phenomena in a multiband superconductor tuning the chemical potential near a band edge
Davide Innocenti, Nicola Poccia, Alessandro Ricci +4
Resonances in the superconducting properties, in a regime of crossover from BCS to mixed Bose-Fermi superconductivity, are investigated in a two-band superconductor where the chemi…
Decay of nonlocality due to adiabatic and quantum noise in the solid state
B. Bellomo, G. Compagno, A. D'Arrigo +3
We study the decay of quantum nonlocality, identified by the violation of the Clauser-Horne-Shimony-Holt (CHSH) Bell inequality, for two noninteracting Josephson qubits subject to…