184 citations · 1.4k across the 64 of their papers we have counts for
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Effective Potential, Mori Product and Quantum Dynamics
A. Cuccoli, R. Giachetti, V. Tognetti +1
We present a method that permits the calculation of the dynamical correlation functions for quantum systems. These are obtained by evaluating the generating functionals of the stat…
Phase-transitions induced by easy-plane anisotropy in the classical Heisenberg antiferromagnet on a triangular lattice: a Monte Carlo simulation
Luca Capriotti, Ruggero Vaia, Alessandro Cuccoli +1
We present the results of Monte Carlo simulations for the antiferromagnetic classical XXZ model with easy-plane exchange anisotropy on the triangular lattice, which causes frustrat…
The two-dimensional quantum Heisenberg antiferromagnet: effective Hamiltonian approach to the thermodynamics
Alessandro Cuccoli, Valerio Tognetti, Ruggero Vaia +1
In this paper we present an extensive study of the thermodynamic properties of the two-dimensional quantum Heisenberg antiferromagnet on the square lattice; the problem is tackled…
Kinetic energy of solid neon by Monte Carlo with improved Trotter- and finite-size extrapolation
Alessandro Cuccoli, Alessandro Macchi, Gaia Pedrolli +2
The kinetic energy of solid neon is calculated by a path-integral Monte Carlo approach with a refined Trotter- and finite-size extrapolation. These accurate data present significan…
Thermodynamics of dissipative quantum systems by effective potential
Alessandro Cuccoli, Andrea Rossi, Valerio Tognetti +1
Classical-like formulas are given in order to evaluate thermal averages of observables belonging to a quantum nonlinear system with dissipation described by the Caldeira-Leggett mo…