7 papers
Thermal boundary conditions in fractional superdiffusion of energy
Tomasz Komorowski, Stefano Olla
We study heat conduction in a one-dimensional {finite}, unpinned chain of atoms perturbed by stochastic momentum exchange and coupled to Langevin heat baths at {possibly} distinct…
Heat equation from a deterministic dynamics
Giovanni Canestrari, Carlangelo Liverani, Stefano Olla
We derive the heat equation for the thermal energy under diffusive space-time scaling for a purely deterministic microscopic dynamics satisfying Newton equations perturbed by an ex…
Nonlinear fluctuations for a chain of weakly anharmonic oscillators with stochastic perturbation
Kohei Hayashi, Stefano Olla
We study the fluctuations of the phonon modes in a one-dimensional chain of anharmonic oscillators where the deterministic Hamiltonian dynamics is perturbed by random exchanges of…
Periodically forced pinned anharmonic atom chains
Shiva Darshan, Alessandra Iacobucci, Stefano Olla +1
Recent works proved a hydrodynamic limit for periodically forced atom chains with harmonic interaction and pinning, together with momentum flip. When energy is the only conserved q…
Multitime fields and hard rod scaling limits
Pablo A. Ferrari, Stefano Olla
A Poisson line process is a random set of straight lines contained in the plane, as the image of the map , for each point of a Poisson…
Heat flow in a periodically forced, unpinned thermostatted chain
Tomasz Komorowski, Stefano Olla, Marielle Simon
We prove the hydrodynamic limit for a one-dimensional harmonic chain of interacting atoms with a random flip of the momentum sign. The system is open: at the left boundary it is at…