65 citations · 106 across the 6 of their papers we have counts for
6 papers
Dynamics of a diathermal versus an adiabatic piston in an ideal gas: Langevin's and phase-space approaches
Bruno Crosignani, Paolo Di Porto, Claudio Conti
We present a comparison between the random motion of an adiabatic and a diathermal piston sliding in a perfect gas. In particular, their dynamical behaviour, if investigated by mea…
Perfect Optical Solitons: Spatial Kerr Solitons as Exact Solutions of Maxwell's Equations
Alessandro Ciattoni, Bruno Crosignani, Paolo Di Porto +1
We prove that spatial Kerr solitons, usually obtained in the frame of nonlinear Schroedinger equation valid in the paraxial approximation, can be found in a generalized form as exa…
Azimuthally polarized spatial dark solitons: exact solutions of Maxwell's equations in a Kerr medium
Alessandro Ciattoni, Bruno Crosignani, Paolo Di Porto +1
Spatial Kerr solitons, typically associated with the standard paraxial nonlinear Schroedinger equation, are shown to exist to all nonparaxial orders, as exact solutions of Maxwell'…
Callen's Adiabatic Piston and the Limits of the Second Law of Thermodynamics
Bruno Crosignani, Paolo Di Porto, Claudio Conti
The limits of the Second Law of Thermodynamics, which reigns undisputed in the macroscopic world, are investigated at the mesoscopic level, corresponding to spatial dimensions of a…
Feeding upon negative entropy in a thermal-equilibrium environment
B. Crosignani, P. Di Porto, C. Conti
The validity of the Second Law of thermodynamics, indisputable in the macroscopic world, is challenged at the mesoscopic level: a mesoscopic isolated system, possessing spatial dim…
Entropy Decrease in Isolated Systems with an Internal Wall undergoing Brownian Motion
B. Crosignani, P. Di Porto
We consider an isolated gaseous system, divided in two parts by an adiabatic movable frictionless internal wall undergoing Brownian motion. We show how this kind of motion can lead…