Thursday, February 21, 2013

1302.4832 (A. A. Lykov et al.)

Obstructions for convergence to Gibbs equilibrium for partially open
linear hamiltonian systems

A. A. Lykov, V. A. Malyshev
We consider general hamiltonian systems with quadratic interaction potential and N degrees of freedom, only $m$ of which have contact with external world, that is subjected to damping and random stationary external forces. We show that, as t tends to infinity, already for m=1, the unique limiting distribution exists for almost all interactions. Moreover, it is Gibbs if the external force is the white noise, but typically not Gibbs for gaussian processes with smooth trajectories. This conclusion survives also in the thermodynamic limit.
View original:

No comments:

Post a Comment