output
19942026
most citedPhonons and related properties of extended systems from density-functional perturbation theory

10.1k citations

Showing 2004 · cond-mat.str-elShow all

11 papers · 2 filters

cond-mat.str-el2004★ 28 cited

Role of strong correlation in the recent ARPES experiments for cuprate superconductors

S. Yunoki, E. Dagotto, S. Sorella

Motivated by recent photoemission experiments on cuprates, the low-lying excitations of a strongly correlated superconducting state are studied numerically. It is observed that alo…

cond-mat.str-el2004★ 150 cited

Magnetic oscillations in planar systems with the Dirac-like spectrum of quasiparticle excitations II: transport properties

V. P. Gusynin, S. G. Sharapov

The quantum magnetic oscillations of electrical (Shubnikov de Haas effect) and thermal conductivities are studied for graphene which represents a distinctive example of planar syst…

cond-mat.str-el2004★ 1 cited

A model dielectric response function for metallic nanotube ropes

J. V. Alvarez, G. G. N. Angilella

We propose a model dielectric function for ropes of single-walled nanotubes distributed in a glassy graphite host medium. We study the significance of the bosonic charge excitation…

cond-mat.str-el2004★ 1 cited

The one-dimensional t-J model coupled to adiabatic phonons: A numerical investigation

Samuele Bissola, Alberto Parola

The ground state of the one-dimensional t-J model coupled with phonons in the adiabatic limit is numerically investigated by use of the Lanczos technique at quarter filling. Due to…

cond-mat.str-el2004★ 16 cited

Spin effects in transport through non-Fermi liquid quantum dots

F. Cavaliere, A. Braggio, M. Sassetti +1

The current-voltage characteristic of a one dimensional quantum dot connected via tunnel barriers to interacting leads is calculated in the region of sequential tunneling. The spin…

cond-mat.str-el2004★ 15 cited

Wigner crystallization in a polarizable medium

G. Rastelli, S. Ciuchi

We present a variational study of the 2D and 3D Wigner crystal phase of large polarons. The method generalizes that introduced by S. Fratini,P.\ Qu{é}merais [Mod. Phys. Lett. B {\b…

cond-mat.str-el2004★ 8 cited

Josephson versus Kondo coupling in a quantum dot connected to two superconductors

Gabriele Campagnano, Domenico Giuliano, Adele Naddeo +1

We apply a Gutzwiller-like variational technique to study Josephson conduction across a quantum dot with an odd number of electrons connected to two superconducting leads. Our meth…

cond-mat.str-el2004★ 5 cited

Linear Kondo conductance in a quantum dot

Domenico Giuliano, Adele Naddeo, Arturo Tagliacozzo

In a tunneling experiment across a quantum dot it is possible to change the coupling between the dot and the contacts at will, by properly tuning the trasparency of the barriers an…

cond-mat.str-el2004★ 163 cited

Studying quantum spin systems through entanglement estimators

Tommaso Roscilde, Paola Verrucchi, Andrea Fubini +2

We study the field dependence of the entanglement of formation in anisotropic S=1/2 antiferromagnetic chains displaying a T=0 field-driven quantum phase transition. The analysis is…

cond-mat.str-el2004★ 2 cited

Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions

Enrico Perfetto, Michele Cini

We discuss a many-electron Hamiltonian with Hubbard-like repulsive interaction and linear coupling to the phonon branches, having the Cu-O plane of the superconducting cuprates as…

cond-mat.str-el2004★ 82 cited

Strongly Correlated Superconductivity and Pseudogap Phase near a multi-band Mott Insulator

M. Capone, M. Fabrizio, C. Castellani +1

Near a Mott transition, strong electron correlations may enhance Cooper pairing. This is demonstrated in the Dynamical Mean Field Theory solution of a twofold-orbital degenerate Hu…