From the 1 of 8.2k papers with an AI index.
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT2.8k papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT1.1k papers
- University of TriesteIT1.1k papers
- Centre National de la Recherche ScientifiqueFR983 papers
- University of PaduaIT725 papers
- National Institute for AstrophysicsIT724 papers
- Osservatorio Astronomico di PadovaIT716 papers
- Trieste Astronomical ObservatoryIT612 papers
- Institute for Fundamental Physics of the UniverseIT605 papers
- University of MilanIT492 papers
- Sapienza University of RomeIT490 papers
- California Institute of TechnologyUS460 papers
11 papers · 2 filters
The Small Polaron Crossover: Role of Dimensionality
M. Capone, S. Ciuchi, C. Grimaldi
The crossover from quasi free electron to small polaron in the Holstein model for a single electron is studied by means of both exact and self-consistent calculations in one dimens…
Simple Bosonization Solution of the 2-channel Kondo Model: I. Analytical Calculation of Finite-Size Crossover Spectrum
Gergely Zarand, Jan von Delft
We present in detail a simple, exact solution of the anisotropic 2-channel Kondo (2CK) model at its Toulouse point. We reduce the model to a quadratic resonant-level model by gener…
Charge fluctuations close to phase separation in the two dimensional t-J model
M. Calandra, F. Becca, S. Sorella
We have studied the t-J model using the Green Function Monte Carlo technique. We have obtained accurate energies well converged in the thermodynamic limit, by performing simulation…
Valence-bond states in dynamical Jahn-Teller molecular systems
Giuseppe Santoro, Leonardo Guidoni, Alberto Parola +1
We discuss a hopping model of electrons between idealized molecular sites with local orbital degeneracy and dynamical Jahn-Teller effect, for crystal field environments of sufficie…
Charge density waves and surface Mott insulators for adlayer structures on semiconductors: extended Hubbard modeling
Giuseppe Santoro, Sandro Scandolo, Erio Tosatti
Motivated by the recent experimental evidence of commensurate surface charge density waves (CDW) in Pb/Ge(111) and Sn/Ge(111) sqrt{3}-adlayer structures, as well as by the insulati…
A Strong-Coupling Approach to the Magnetization Process of Polymerized Quantum Spin Chains
A. Honecker
Polymerized quantum spin chains (i.e. spin chains with a periodic modulation of the coupling constants) exhibit plateaux in their magnetization curves when subjected to homogeneous…