Non-equilibrium Approach to Thermodynamics using Jarzynski Equality and Diagonal Entropy
Quantum Physics
2013-07-09 v3 Statistical Mechanics
Computational Physics
Abstract
We combine the formalisms of diagonal entropy and Jarzynski Equality to study the thermodynamic properties of closed quantum systems. Applying this approach to a quantum harmonic oscillator, the diagonal entropy offers a notion of temperature for closed systems away from equilibrium, and allows computing free-energy profiles. We also apply this approach to a hard-core boson lattice model, and discuss measures how to estimate temperature, entropy and measure work distribution functions. This technique offers a path to investigate the non-equilibrium quantum dynamics by means of performing work in a series of quenches.
Cite
@article{arxiv.1303.2141,
title = {Non-equilibrium Approach to Thermodynamics using Jarzynski Equality and Diagonal Entropy},
author = {Van A. Ngo and Stephan Haas},
journal= {arXiv preprint arXiv:1303.2141},
year = {2013}
}
Comments
6 pages and 4 figures