Numerical and Analytical Approach to the Quantum Dynamics of Two Coupled Spins in Bosonic Baths
Quantum Physics
2010-02-07 v1
Abstract
The quantum dynamics of a spin chain interacting with multiple bosonic baths is described in a mixed Wigner-Heisenberg representation. The formalism is illustrated by simulating the time evolution of the reduced density matrix of two coupled spins, where each spin is also coupled to its own bath of harmonic oscillators. In order to prove the validity of the approach, an analytical solution in the Born-Markov approximation is found. The agreement between the two methods is shown.
Keywords
Cite
@article{arxiv.0903.5181,
title = {Numerical and Analytical Approach to the Quantum Dynamics of Two Coupled Spins in Bosonic Baths},
author = {Alessandro Sergi and Ilya Sinayskiy and Francesco Petruccione},
journal= {arXiv preprint arXiv:0903.5181},
year = {2010}
}