797 citations
- Istituto Nazionale di Fisica Nucleare, Sezione di FirenzeIT11 papers
- Sapienza University of RomeIT10 papers
- University of FlorenceIT9 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Centro Ricerche Enrico FermiIT4 papers
- École Polytechnique Fédérale de LausanneCH4 papers
- Istituto Nazionale per la Fisica della MateriaIT4 papers
- Centre de Physique ThéoriqueFR3 papers
- Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande InterfaseIT3 papers
- Institute of AstronomyRU3 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT3 papers
- St Petersburg UniversityRU3 papers
6 papers · 1 filter
Entanglement and factorized ground states in two-dimensional quantum antiferromagnets
Tommaso Roscilde, Paola Verrucchi, Andrea Fubini +2
Making use of exact results and quantum Monte Carlo data for the entanglement of formation, we show that the ground state of anisotropic two-dimensional S=1/2 antiferromagnets in a…
Dissipation-driven phase transition in 2D Josephson arrays
Luca Capriotti, Alessandro Cuccoli, Andrea Fubini +2
We analyze the interplay of dissipative and quantum effects in the proximity of a quantum phase transition. The prototypical system is a resistively shunted two-dimensional Josephs…
First experimental evidence for quantum echoes in scattering systems
C. Dembowski, B. Dietz, T. Friedrich +6
A self-pulsing effect termed quantum echoes has been observed in experiments with an open superconducting and a normal conducting microwave billiard whose geometry provides soft ch…
The production rate of the coarse grained Gibbs entropy and the Kolmogorov-Sinai entropy: a real connection ?
Massimo Falcioni, Luigi Palatella, Angelo Vulpiani
We discuss the connection between the Kolmogorov-Sinai entropy, , and the production rate of the coarse grained Gibbs entropy, . Detailed numerical computations show t…
Bistability between different dissipative solitons in nonlinear optics
U. Bortolozzo, L. Pastur, P. L. Ramazza +2
We report the observation of different localized structures coexisting for the same parameter values in an extended system. The experimental findings are carried out in a nonlinear…
Nobility and Stupidity: Modeling the Evolution of Class Endogamy
Theodore C. Belding
Class endogamy is a phenomenon in which nobles only marry other nobles and commoners only marry other commoners. The origin of class endogamy, and of social stratification in gener…