Physics – Quantum Physics
Scientific paper
2010-02-10
Phys. Rev. A 81, 042103 (2010)
Physics
Quantum Physics
11 pages, no figures
Scientific paper
10.1103/PhysRevA.81.042103
Exact master equations describing the decay of a two-state system into a structured reservoir are constructed. Employing the exact solution for the model we determine analytical expressions for the memory kernel of the Nakajima-Zwanzig master equation and for the generator of the corresponding time-convolutionless master equation. This approach allows a detailed investigation and comparison of the convergence behavior of the corresponding perturbation expansions. Moreover, we find that the structure of widely used phenomenological master equations with memory kernel may be incompatible with a non-perturbative treatment of the underlying microscopic model. We discuss several physical implications of our results on the microscopic analysis and the phenomenological modelling of non-Markovian quantum dynamics of open systems.
Breuer Heinz-Peter
Vacchini Bassano
No associations
LandOfFree
Exact master equations for the non-Markovian decay of a qubit does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Exact master equations for the non-Markovian decay of a qubit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exact master equations for the non-Markovian decay of a qubit will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-239591