Information density, structure and entropy in equilibrium and non-equilibrium systems

Reconstructing equilibrium entropy and enthalpy profiles from non-equilibrium pulling.

The Jarzynski identity can be applied to instances when a microscopic system is pulled repeatedly but quickly along some coordinate, allowing the calculation of an equilibrium free energy profile along the pulling coordinate from a set of independent non-equilibrium trajectories. Using the formalism of Wiener stochastic path integrals in which we assign temperature-dependent weights to Langevin...

The density profile of equilibrium and non - equilibrium dark matter

We study the diversity of the density profiles of dark matter halos based on a large set of high-resolution cosmological simulations of 256 3 particles. The cosmological models include four scale-free models and three representative cold dark matter models. The simulations have good force resolution. In each cosmological model, there are about 400 massive halos which have more than 10 4 particl...

Structure and Dynamics of Equilibrium and Non-Equilibrium Systems: Colloidal Suspensions in Confining Light Fields

Boundary-Induced Phase Transitions in Equilibrium and Non-Equilibrium Systems

Boundary conditions may change the phase diagram of non-equilibrium statistical systems like the one-dimensional asymmetric simple exclusion process with and without particle number conservation. Using the quantum Hamiltonian approach, the model is mapped onto an XXZ quantum chain and solved using the Bethe ansatz. This system is related to a two-dimensional vertex model in thermal equilibrium....

Entropy of Self - Gravitating Systems III . equilibrium structure using normalized

We revisit the issues on the thermodynamic property of stellar self-gravitating system arising from Tsallis’ non-extensive entropy. Previous papers (Taruya & Sakagami, Physica A 307 (2002) 185 (cond-mat/0107494); ibid. (2002) in press (condmat/0204315)) have revealed that the extremum-state of Tsallis entropy characterized by the so-called stellar polytrope has consistent thermodynamic structur...