Relaxation, thermalization, and Markovian dynamics of two spins coupled to a spin bath.
basic_science · Level V
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- Record sourced from PubMed, PMID 29347797.
- Also identified by DOI 10.1103/PhysRevE.96.053306.
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Abstract
It is shown that by fitting a Markovian quantum master equation to the numerical solution of the time-dependent Schrödinger equation of a system of two spin-1/2 particles interacting with a bath of up to 34 spin-1/2 particles, the former can describe the dynamics of the two-spin system rather well. The fitting procedure that yields this Markovian quantum master equation accounts for all non-Markovian effects in as much the general structure of this equation allows and yields a description that is incompatible with the Lindblad equation.