10.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT156 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT146 papers
- University of InsubriaIT88 papers
- University of MilanIT85 papers
- University of TrentoIT85 papers
- Politecnico di TorinoIT78 papers
- University of FlorenceIT74 papers
- University of GenoaIT69 papers
- Centre National de la Recherche ScientifiqueFR65 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT65 papers
- National Research CouncilLK58 papers
- University of SalernoIT56 papers
29 papers · 2 filters
Modulation of dephasing due to a spin-boson environment
E. Paladino, M. Sassetti, G. Falci
We study the reduced dynamics of a spin (qubit) coupled to a spin-boson environment in the case of pure dephasing. We derive formal exact expressions which can be cast in terms of…
The entropy multiparticle-correlation expansion for a mixture of spherical and elongated particles
S. Prestipino, P. V. Giaquinta
We derive the multiparticle-correlation expansion of the excess entropy of classical particles in the canonical ensemble using a new approach that elucidates the rationale behind e…
Dephasing and breakdown of adiabaticity in the splitting of Bose Einstein Condensates
L. Pezze, A. Smerzi, G. P. Berman +2
We study the quantum dynamics of a BEC condensate trapped in a double-well potential with a rising interwell barrier. We analytically find the characteristic time scales of the spl…
Ground state of many-body lattice systems via a central limit theorem
Carlo Presilla, Massimo Ostilli
We review a novel approach to evaluate the ground-state properties of many-body lattice systems based on an exact probabilistic representation of the dynamics and its long time app…
Stability boundaries, percolation threshold, and two phase coexistence for polydisperse fluids of adhesive colloidal particles
Riccardo Fantoni, Domenico Gazzillo, Achille Giacometti
We study the polydisperse Baxter model of sticky hard spheres (SHS) in the modified Mean Spherical Approximation (mMSA). This closure is known to be the zero-order approximation (C…
Correction to scaling in the response function of the 2d kinetic Ising model
Federico Corberi, Eugenio Lippiello, Marco Zannetti
The aging part of the impulsive response function of the two dimensional ferromagnetic Ising model, quenched below the critical point, is studied numerically employin…
Studies of thermal conductivity in Fermi-Pasta-Ulam like lattices
Stefano Lepri, Roberto Livi, Antonio Politi
The pioneering computer simulations of the energy relaxation mechanisms performed by Fermi, Pasta and Ulam can be considered as the first attempt of understanding energy relaxation…
Nonequilibrium stationary states with ratchet effect
G. Cristadoro, D. L. Shepelyansky
An ensemble of particles in thermal equilibrium at temperature , modeled by Nosè-Hoover dynamics, moves on a triangular lattice of oriented semi-disk elastic scatterers. Despite…
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…
Correlation function and generalized master equation of arbitrary age
Paolo Allegrini, Gerardo Aquino, Paolo Grigolini +3
We study a two-state statistical process with a non-Poisson distribution of sojourn times. In accordance with earlier work, we find that this process is characterized by aging and…
A microscopic approach to critical phenomena at interfaces: an application to complete wetting in the Ising model
Alberto Orlandi, Alberto Parola, Luciano Reatto
We study how the formalism of the Hierarchical Reference Theory (HRT) can be extended to inhomogeneous systems. HRT is a liquid state theory which implements the basic ideas of Wil…
Two-parameter deformations of logarithm, exponential, and entropy: A consistent framework for generalized statistical mechanics
G. Kaniadakis, M. Lissia, A. M. Scarfone
A consistent generalization of statistical mechanics is obtained by applying the maximum entropy principle to a trace-form entropy and by requiring that physically motivated mathem…
Landau dynamics of a grey soliton in a trapped condensate
Vladimir V. Konotop, Lev Pitaevskii
It is shown that grey soliton dynamics in an one-dimensional trap can be treated as Landau dynamics of a quasi-particle. A soliton of arbitrary amplitude moves in the trapping pote…
Dynamics of a BEC bright soliton in an expulsive potential
Luca Salasnich
We theoretically investigate the dynamics of a matter-wave soliton created in a harmonic potential, which is attractive in the transverse direction but expulsive in the longitudina…
Effect of the Casimir-Polder force on the collective oscillations of a trapped Bose-Einstein condensate
Mauro Antezza, Lev P. Pitaevskii, Sandro Stringari
We calculate the effect of the interaction between an optically active material and a Bose-Einstein condensate on the collective oscillations of the condensate. We provide explicit…
Quantum ratchets in dissipative chaotic systems
Gabriel G. Carlo, Giuliano Benenti, Giulio Casati +1
Using the method of quantum trajectories we study a quantum chaotic dissipative ratchet appearing for particles in a pulsed asymmetric potential in the presence of a dissipative en…
Directed Percolation with long-range interactions: modeling non-equilibrium wetting
F. Ginelli, H. Hinrichsen, R. Livi +2
It is argued that some phase--transitions observed in models of non-equilibrium wetting phenomena are related to contact processes with long-range interactions. This is investigate…
Nonlinear supratransmission and bistability in the Fermi-Pasta-Ulam model
Ramaz Khomeriki, Stefano Lepri, Stefano Ruffo
The recently discovered phenomenon of nonlinear supratransmission consists in a sudden increase of the amplitude of a transmitted wave triggered by the excitation of nonlinear loca…
Microcanonical fluctuations of the condensate in weakly interacting Bose gases
Zbigniew Idziaszek
We study fluctuations of the number of Bose condensed atoms in weakly interacting homogeneous and trapped gases. For a homogeneous system we apply the particle-number-conserving fo…
On the convergence of Kikuchi's natural iteration method
Marco Pretti
In this article we investigate on the convergence of the natural iteration method, a numerical procedure widely employed in the statistical mechanics of lattice systems to minimize…
Observable Signature of the Berezinskii-Kosterlitz-Thouless Transition in a Planar Lattice of Bose-Einstein Condensates
A. Trombettoni, A. Smerzi, P. Sodano
We investigate the possibility that Bose-Einstein condensates (BECs), loaded on a 2D optical lattice, undergo - at finite temperature - a Berezinskii-Kosterlitz-Thouless (BKT) tran…
Ultracold atomic Fermi-Bose mixtures in bichromatic optical dipole traps: a novel route to study fermion superfluidity
R. Onofrio, C. Presilla
The study of low density, ultracold atomic Fermi gases is a promising avenue to understand fermion superfluidity from first principles. One technique currently used to bring Fermi…
Value-at-Risk and Tsallis statistics: risk analysis of the aerospace sector
Adriana P. Mattedi, Fernando M. Ramos, Reinaldo R. Rosa +1
In this study, we analyze the aerospace stocks prices in order to characterize the sector behavior. The data analyzed cover the period from January 1987 to April 1999. We present a…
Non-Poisson dichotomous noise: higher-order correlation functions and aging
P. Allegrini, P. Grigolini, L. Palatella +1
We study a two-state symmetric noise, with a given waiting time distribution , and focus our attention on the connection between the four-time and the two-time correlation fu…