Dissipation in spin chains using quantized nonequilibrium thermodynamics

Autor: Massimo Borrelli, Hans Christian Öttinger
Rok vydání: 2022
Předmět:
Zdroj: Physical Review A. 106
ISSN: 2469-9934
2469-9926
DOI: 10.1103/physreva.106.022220
Popis: We investigate the open dynamics of a chain of interacting spins using the quantized version of the GENERIC equation from classical out-of-equilibrium thermodynamics. We focus on both equilibrium and nonequilibrium scenarios for chains of different sizes. While in the equilibrium case we demonstrate thermal equilibration to the correct many-body Gibbs density matrix, in the nonequilibrium dynamics we show a ballistic-to-diffusive transition in the steady-state energy current and a scaling that is consistent with Fourier's law of heat transfer.
8 pages, 6 figures
Databáze: OpenAIRE