7.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Scuola Internazionale Superiore di Studi AvanzatiIT390 papers
- Centre National de la Recherche ScientifiqueFR229 papers
- University of TriesteIT183 papers
- University of PaduaIT177 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT169 papers
- Sapienza University of RomeIT155 papers
- Scuola Normale SuperioreIT155 papers
- École Polytechnique Fédérale de LausanneCH153 papers
- National Research CouncilLK150 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR145 papers
- Université Paris-SaclayFR143 papers
- Universität HamburgDE136 papers
35 papers · 1 filter
Helicity modulus in the bilayer XY model by worm algorithm
A. Masini, A. Cuccoli, A. Rettori +2
The behaviour of the helicity modulus has been frequently employed to investigate the onset of the topological order characterizing the low-temperature phase of the two-dimensional…
Green and Kubo forge the arrow of time
Stefano Baroni
Transport theory describes the response of a macroscopic current to a thermodynamic force, thus producing entropy and apparently violating time-reversal symmetry. In this note I re…
From Green-Kubo to the full Boltzmann kinetic approach to heat transport in crystals and glasses
Alfredo Fiorentino, Stefano Baroni
We show that vertex corrections to the quasi-harmonic Green-Kubo theory of heat transport in insulators naturally lead to a generalisation of the expression for the conductivity th…
Criticality of Spin Systems with Weak Long-Range Interactions
Nicolò Defenu, Alessandro Codello, Stefano Ruffo +1
The study of critical properties of systems with long-range interactions has attracted in the last decades a continuing interest and motivated the development of several analytical…
Optimal working point in digitized quantum annealing
Glen Bigan Mbeng, Luca Arceci, Giuseppe E. Santoro
We present a study of the digitized Quantum Annealing protocol proposed by R. Barends et al., Nature 534, 222 (2016). Our analysis, performed on the benchmark case of a transverse…
BKT-paired phase in coupled XY models
Giacomo Bighin, Nicolò Defenu, István Nándori +2
We study the effect of a linear tunneling coupling between 2D systems, each separately exhibiting the topological Berezinskii-Kosterlitz-Thouless (BKT) transition. In the uncoupled…
Ising chains with competing interactions in presence of long-range couplings
Alessandro Campa, Giacomo Gori, Vahan Hovhannisyan +2
In this paper we study an Ising spin chain with short-range competing interactions in presence of long-range ferromagnetic interactions in the canonical ensemble. The simultaneous…
Dynamics and correlations in Motzkin and Fredkin spin chains
L. Dell'Anna, L. Barbiero, A. Trombettoni
The Motzkin and Fredkin quantum spin chains are described by frustration-free Hamiltonians recently introduced and studied because of their anomalous behaviors in the correlation f…
Geometry of bounded critical phenomena
Giacomo Gori, Andrea Trombettoni
We devise a geometric description of bounded systems at criticality in any dimension . This is achieved by altering the flat metric with a space dependent scale factor , $…
Integrable Floquet Hamiltonian for a Periodically Tilted 1D Gas
Andrea Colcelli, Giuseppe Mussardo, German Sierra +1
An integrable model subjected to a periodic driving gives rise generally to a non-integrable Floquet Hamiltonian. Here we show that the Floquet Hamiltonian of the integrable Lieb--…
Projective quantum Monte Carlo simulations guided by unrestricted neural network states
E. M. Inack, G. E. Santoro, L. Dell'Anna +1
We investigate the use of variational wave-functions that mimic stochastic recurrent neural networks, specifically, unrestricted Boltzmann machines, as guiding functions in project…
Thermolubricity and the Jarzynski equality
Franco Pellegrini, Emanuele Panizon, Giuseppe Santoro +1
We discuss and qualify a previously unnoticed connection between two different phenomena in the physics of nanoscale friction, general in nature and also met in experiments includi…
Universal off-diagonal long-range order behaviour for a trapped Tonks-Girardeau gas
Andrea Colcelli, Jacopo Viti, Giuseppe Mussardo +1
The scaling of the largest eigenvalue of the one-body density matrix of a system with respect to its particle number defines an exponent and a coefficient $…
Theory and numerical simulation of heat transport in multi-component systems
Riccardo Bertossa, Federico Grasselli, Loris Ercole +1
The thermal conductivity of classical multi-component fluids is seemingly affected by the intrinsic arbitrariness in the definition of the atomic energies and it is ill-conditioned…
Four-point boundary connectivities in critical two-dimensional percolation from conformal invariance
Giacomo Gori, Jacopo Viti
We conjecture an exact form for an universal ratio of four-point cluster connectivities in the critical two-dimensional -color Potts model. We also provide analogous results for…
Deviations from Off-Diagonal Long-Range Order in One-Dimensional Quantum Systems
Andrea Colcelli, Giuseppe Mussardo, Andrea Trombettoni
A quantum system exhibits off-diagonal long-range order (ODLRO) when the largest eigenvalue of the one-body-density matrix scales as , where is the total numb…
Heat transport in insulators from ab initio Green-Kubo theory
Stefano Baroni, Riccardo Bertossa, Loris Ercole +2
The Green-Kubo theory of thermal transport has long be considered incompatible with modern simulation methods based on electronic-structure theory, because it is based on such conc…
Fermi-Pasta-Ulam chains with harmonic and anharmonic long-range interactions
G. N. B. Chendjou, J. P. Nguenang, A. Trombettoni +3
We study the dynamics of Fermi-Pasta-Ulam chains with both harmonic and anharmonic power-law long-range interactions. We show that the dynamics is described in the continuum limit…
Understanding Quantum Tunneling using Diffusion Monte Carlo Simulations
E. M. Inack, G. Giudici, T. Parolini +2
In simple ferromagnetic quantum Ising models characterized by an effective double-well energy landscape the characteristic tunneling time of path-integral Monte Carlo (PIMC) simula…
Haldane Topological Orders in Motzkin Spin Chains
L. Barbiero, L. Dell'Anna, A. Trombettoni +1
Motzkin spin chains are frustration-free models whose ground-state is a combination of Motzkin paths. The weight of such path contributions can be controlled by a deformation param…
One-dimensional long-range percolation: a numerical study
G. Gori, M. Michelangeli, N. Defenu +1
In this paper we study bond percolation on a one-dimensional chain with power-law bond probability , where is the distance length between distinct sites. We introdu…
Spreading of correlations in a quenched repulsive and attractive one dimensional lattice system
L. Barbiero, L. Dell'Anna
We study the real time evolution of the correlation functions in a globally quenched interacting one dimensional lattice system by means of time adaptive density matrix renormaliza…
Markov State Modeling of Sliding Friction
F. Pellegrini, F. P. Landes, A. Laio +2
Markov State Modeling has recently emerged as a key technique for analyzing rare events in thermal equilibrium molecular simulations and finding metastable states. Here we export t…
Low-density phases of He monolayers adsorbed on graphite
Michele Ruggeri, Ettore Vitali, Davide Emilio Galli +2
Quantum Monte Carlo simulations at zero temperature of a He monolayer adsorbed on graphite, either clean or preplated with He, unexpectedly point to a gas-liquid phase tran…