Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Squarcini, Alessio"'
We consider a tracer particle performing a random walk on a two-dimensional lattice in the presence of immobile hard obstacles. Starting from equilibrium, a constant force pulling on the particle is switched on, driving the system to a new stationary
Externí odkaz:
http://arxiv.org/abs/2409.02696
We investigate the stochastic behavior of the single-trajectory spectral density $S(\omega,\mathcal{T})$ of several Gaussian stochastic processes, i.e., Brownian motion, the Ornstein-Uhlenbeck process, the Brownian gyrator model and fractional Browni
Externí odkaz:
http://arxiv.org/abs/2205.11893
We discuss the statistical properties of a single-trajectory power spectral density $S(\omega,\mathcal{T})$ of an arbitrary real-valued centered Gaussian process $X(t)$, where $\omega$ is the angular frequency and $\mathcal{T}$ the observation time.
Externí odkaz:
http://arxiv.org/abs/2205.12055
Previous treatments of three-dimensional (3D) short-ranged wetting transitions have missed an entropic or low temperature Casimir contribution to the binding potential describing the interaction between the unbinding interface and wall. This we deter
Externí odkaz:
http://arxiv.org/abs/2204.12353
When a physical system evolves in a thermal bath at a constant temperature, it arrives eventually to an equilibrium state whose properties are independent of the kinetic parameters and of the precise evolution scenario. This is generically not the ca
Externí odkaz:
http://arxiv.org/abs/2204.12145
We study analytically the single-trajectory spectral density (STSD) of an active Brownian motion as exhibited, for example, by the dynamics of a chemically-active Janus colloid. We evaluate the standardly-defined spectral density, i.e. the STSD avera
Externí odkaz:
http://arxiv.org/abs/2109.03883
Autor:
Squarcini, Alessio, Tinti, Antonio
We consider near-critical two-dimensional statistical systems at phase coexistence on the half plane with boundary conditions leading to the formation of a droplet separating coexisting phases. General low-energy properties of two-dimensional field t
Externí odkaz:
http://arxiv.org/abs/2106.01945
Autor:
Squarcini, Alessio, Tinti, Antonio
We derive exact analytic results for several four-point correlation functions for statistical models exhibiting phase separation in two-dimensions. Our theoretical results are then specialized to the Ising model on the two-dimensional strip and found
Externí odkaz:
http://arxiv.org/abs/2104.12517
Autor:
Squarcini, Alessio, Tinti, Antonio
We consider phase separation on the strip for the two-dimensional Ising model in the near-critical region. Within the framework of field theory, we find exact analytic results for certain two- and three-point correlation functions of the order parame
Externí odkaz:
http://arxiv.org/abs/2104.06660
Autor:
Squarcini, Alessio
We consider near-critical two-dimensional statistical systems with boundary conditions inducing phase separation on the strip. By exploiting low-energy properties of two-dimensional field theories, we compute arbitrary $n$-point correlation of the or
Externí odkaz:
http://arxiv.org/abs/2104.05073