S. Ciuchi
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View article: Stabilization of Fermi-liquid behavior by interactions in disordered metals
Stabilization of Fermi-liquid behavior by interactions in disordered metals Open
We study the interplay of electron-electron and electron-disorder scattering in correlated Fermi liquids by the disordered Hubbard model using dynamical mean-field theory with an IPT-CPA solver. We find significant violations of Matthiesse…
View article: Strange metal transport from coupling to fluctuating spins
Strange metal transport from coupling to fluctuating spins Open
Metals hosting strong electronic interactions, including high-temperature superconductors, behave in ways that do not conform to the normal Fermi liquid theory. To pinpoint the microscopic origin of this "strange metal" behavior, here we r…
View article: Strange metal behavior from incoherent carriers scattered by local moments
Strange metal behavior from incoherent carriers scattered by local moments Open
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View article: Transient localization from the interaction with quantum bosons
Transient localization from the interaction with quantum bosons Open
We carefully revisit the electron-boson scattering problem, going beyond popular semi-classical treatments. By providing numerically exact results valid at finite temperatures, we demonstrate the existence of a regime of electron-boson sca…
View article: Universal Scaling near Band-Tuned Metal-Insulator Phase Transitions
Universal Scaling near Band-Tuned Metal-Insulator Phase Transitions Open
We present a theory for band-tuned metal-insulator transitions based on the Kubo formalism. Such a transition exhibits scaling of the resistivity curves in the regime where Tτ>1 or μτ>1, where τ is the scattering time and μ the chemical po…
View article: Interacting nodal semimetals with non-linear bands
Interacting nodal semimetals with non-linear bands Open
We investigate the quasi-particle and transport properties of a model describing interacting Dirac and Weyl semimetals in the presence of local Hubbard repulsion $U$, where we explicitly include a deviation from the linearity of the energy…
View article: Strange metal behavior from incoherent carriers scattered by local moments
Strange metal behavior from incoherent carriers scattered by local moments Open
We study metallic transport in an effective model that describes the coupling of electrons to fluctuating magnetic moments with full SU(2) symmetry, exhibiting characteristic behavior of metals at the approach of the Mott transition. We sh…
View article: A quantum theory of the nearly frozen charge glass
A quantum theory of the nearly frozen charge glass Open
We study long-range interacting electrons on the triangular lattice using mixed quantum/classical simulations going beyond the usual classical descriptions of the lattice Coulomb fluid. Our results in the strong interaction limit indicate …
View article: Report on scipost_202210_00018v1
Report on scipost_202210_00018v1 Open
We study long-range interacting electrons on the triangular lattice using mixed quantum/classical simulations going beyond the usual classical descriptions of the lattice Coulomb fluid.Our results in the strong interaction limit indicate t…
View article: Report on scipost_202210_00018v1
Report on scipost_202210_00018v1 Open
We study long-range interacting electrons on the triangular lattice using mixed quantum/classical simulations going beyond the usual classical descriptions of the lattice Coulomb fluid.Our results in the strong interaction limit indicate t…
View article: Report on 2104.01075v2
Report on 2104.01075v2 Open
Scattering by slowly fluctuating degrees of freedom can cause a transient localization of the current-carrying electrons in metals, driving the system away from normal metallic behavior.We illustrate and characterize this general phenomeno…
View article: Report on 2104.01075v2
Report on 2104.01075v2 Open
Scattering by slowly fluctuating degrees of freedom can cause a transient localization of the current-carrying electrons in metals, driving the system away from normal metallic behavior.We illustrate and characterize this general phenomeno…
View article: Resistivity Exponents in 3D Dirac Semimetals From Electron-Electron Interaction
Resistivity Exponents in 3D Dirac Semimetals From Electron-Electron Interaction Open
We study the resistivity of three-dimensional semimetals with linear dispersion in the presence of on-site electron-electron interaction. The well-known quadratic temperature dependence of the resistivity of conventional metals is turned i…
View article: Displaced Drude peak and bad metal behavior caused by a slowly fluctuating environment
Displaced Drude peak and bad metal behavior caused by a slowly fluctuating environment Open
Scattering by slowly fluctuating degrees of freedom can cause a transient localization of the current-carrying electrons in metals, driving the system away from normal metallic behavior. We illustrate and characterize this general phenomen…
View article: Attractive Effect of a Strong Electronic Repulsion: The Physics of Vertex Divergences
Attractive Effect of a Strong Electronic Repulsion: The Physics of Vertex Divergences Open
While the breakdown of the perturbation expansion for the many-electron problem has several formal consequences, here we unveil its physical effect: flipping the sign of the effective electronic interaction in specific scattering channels.…
View article: Interplay between local response and vertex divergences in many-fermion systems with on-site attraction
Interplay between local response and vertex divergences in many-fermion systems with on-site attraction Open
We investigate the divergences appearing in the two-particle irreducible\nvertex functions of many-fermion systems with attractive on-site interactions.\nBy means of dynamical mean-field theory calculations, we determine the location\nof s…
View article: Design of auxiliary systems for spectroscopy
Design of auxiliary systems for spectroscopy Open
In this contribution, we advocate the possibility of designing auxiliary systems with effective potentials or kernels that target only the specific spectral properties of interest and are simpler than the self-energy of many-body perturbat…
View article: Electronic Structure, Electron-Phonon Coupling, and Charge Transport in Crystalline Rubrene Under Mechanical Strain
Electronic Structure, Electron-Phonon Coupling, and Charge Transport in Crystalline Rubrene Under Mechanical Strain Open
Motivated by the potential for the application of organic semiconductors in flexible electronics, we present a theoretical study aiming at elucidating the interplay between mechanical strain and electronic, vibrational, and charge transpor…
View article: Electronic Structure, Electron-Phonon Coupling and Charge Transport in Crystalline Rubrene Under Mechanical Strain
Electronic Structure, Electron-Phonon Coupling and Charge Transport in Crystalline Rubrene Under Mechanical Strain Open
Motivated by the potential for application of organic semiconductors in exible electronics, we present a theoretical study aiming at elucidating the interplay between mechanical strain and electronic, vibrational and charge transport prope…
View article: Electronic Structure, Electron-Phonon Coupling and Charge Transport in Crystalline Rubrene Under Mechanical Strain
Electronic Structure, Electron-Phonon Coupling and Charge Transport in Crystalline Rubrene Under Mechanical Strain Open
Motivated by the potential for application of organic semiconductors in exible electronics, we present a theoretical study aiming at elucidating the interplay between mechanical strain and electronic, vibrational and charge transport pro…
View article: From transient localization to band transport: on quantum corrections and lack thereof
From transient localization to band transport: on quantum corrections and lack thereof Open
Transient localization has emerged as a powerful theoretical framework that is able to describe charge transport in high-mobility organic semiconductors, where the carrier diffusion is strongly limited by their coupling to thermal molecula…
View article: Analytical investigation of singularities in two-particle irreducible vertex functions of the Hubbard atom
Analytical investigation of singularities in two-particle irreducible vertex functions of the Hubbard atom Open
Two-particle generalized susceptibilities and their irreducible vertex\nfunctions play a prominent role in the quantum many-body theory for correlated\nelectron systems. They act as basic building blocks in the parquet formalism\nwhich pro…
View article: Datasets For Figure Files In "A Map Of High Mobility Molecular Semiconductors", Nature Materials (2017)
Datasets For Figure Files In "A Map Of High Mobility Molecular Semiconductors", Nature Materials (2017) Open
The data contained here correspond to the figure files appearing in the work "A map of high mobility molecular semiconductors", published in Nature Materials (2017)
View article: Datasets For Figure Files In "A Map Of High Mobility Molecular Semiconductors", Nature Materials (2017)
Datasets For Figure Files In "A Map Of High Mobility Molecular Semiconductors", Nature Materials (2017) Open
The data contained here correspond to the figure files appearing in the work "A map of high mobility molecular semiconductors", published in Nature Materials (2017)
View article: Magnetic phases of spin-1 lattice gases with random interactions
Magnetic phases of spin-1 lattice gases with random interactions Open
A spin-1 atomic gas in an optical lattice, in the unit-filling Mott Insulator\n(MI) phase and in the presence of disordered spin-dependent interaction, is\nconsidered. In this regime, at zero temperature, the system is well described\nby a…
View article: Disorder-Driven Metal-Insulator Transitions in Deformable Lattices
Disorder-Driven Metal-Insulator Transitions in Deformable Lattices Open
We show that, in the presence of a deformable lattice potential, the nature of the disorder-driven metal-insulator transition is fundamentally changed with respect to the noninteracting (Anderson) scenario. For strong disorder, even a mode…
View article: Nonperturbative landscape of the Mott-Hubbard transition: Multiple divergence lines around the critical endpoint
Nonperturbative landscape of the Mott-Hubbard transition: Multiple divergence lines around the critical endpoint Open
We analyze the highly non-perturbative regime surrounding the Mott-Hubbard\nmetal-to-insulator transition (MIT) by means of dynamical mean field theory\ncalculations at the two-particle level. By extending the results of Sch\\"afer,\net al…
View article: The Transient Localization Scenario for Charge Transport in Crystalline Organic Materials
The Transient Localization Scenario for Charge Transport in Crystalline Organic Materials Open
Charge transport in crystalline organic semiconductors is intrinsically limited by the presence of large thermal molecular motions, which are a direct consequence of the weak van der Waals intermolecular interactions. These lead to an orig…