166 citations
- Université Toulouse III - Paul SabatierFR87 papers
- Centre National de la Recherche ScientifiqueFR74 papers
- Laboratoire de Physique ThéoriqueFR63 papers
- Université Fédérale de Toulouse Midi-PyrénéesFR24 papers
- Laboratoire Collisions Agrégats RéactivitéFR16 papers
- Laboratoire de Chimie et Physique QuantiquesFR16 papers
- Sorbonne UniversitéFR7 papers
- École Normale Supérieure de LyonFR4 papers
- École Normale Supérieure - PSLFR4 papers
- École Polytechnique Fédérale de LausanneCH4 papers
- Laboratoire Kastler BrosselFR4 papers
- Université Paris-SudFR4 papers
10 papers · 1 filter
Quantum Monte Carlo simulations of fidelity at magnetic quantum phase transitions
David Schwandt, Fabien Alet, Sylvain Capponi
When a system undergoes a quantum phase transition, the ground-state wave-function shows a change of nature, which can be monitored using the fidelity concept. We introduce two Qua…
Diffusion and localization for the Chirikov typical map
Klaus M. Frahm, Dima L. Shepelyansky
We consider the classical and quantum properties of the "Chirikov typical map", proposed by Boris Chirikov in 1969. This map is obtained from the well known Chirikov standard map b…
Delocalization transition for the Google matrix
Olivier Giraud, Bertrand Georgeot, Dima L. Shepelyansky
We study the localization properties of eigenvectors of the Google matrix, generated both from the World Wide Web and from the Albert-Barabasi model of networks. We establish the e…
Nonlinear delocalization on disordered Stark ladder
Ignacio Garcia-Mata, Dima L. Shepelyansky
We study effects of weak nonlineary on localization of waves in disordered Stark ladder corresponding to propagation in presence of disorder and a static field. Our numerical resul…
Magnetization plateaux in the classical Shastry-Sutherland lattice
M. Moliner, D. C. Cabra, A. Honecker +2
We investigated the classical Shastry-Sutherland lattice under an external magnetic field in order to understand the recently discovered magnetization plateaux in the rare-earth te…
Theory of the Raman spectra of the Shastry-Sutherland antiferromagnet SrCu(BO) doped with nonmagnetic impurities
S. Capponi, D. Poilblanc, F. Mila
Controlled doping of SrCu(BO), a faithful realization of the Heisenberg spin-1/2 antiferromagnet on the Shastry-Sutherland lattice, with non-magnetic impurities generat…