Controllable non-Markovianity in phase relaxation
Abstract
Recently remarkable progress in quantum technology has been witnessed. In view of this it is important to investigate an open quantum system as a model of such quantum devices. Quantum devices often require extreme conditions such as very low temperature for the devices to operate. Dynamics can be non-Markovian in such a situation in contrast with Markovian dynamics in high temperature regime. This observation necessitates us to investigate a non-Markovian open quantum system, both theoretically and experimentally. In this paper, we report two important results: 1) Exact solution of a simple but non-trivial theoretical model and 2) demonstration of this model by NMR experiments, where non-Markovianity is continuously controllable. We observe qualitative agreement between theory and experiment.
Cite
@article{arxiv.2007.11382,
title = {Controllable non-Markovianity in phase relaxation},
author = {Shingo Kukita and Yasushi Kondo and Mikio Nakahara},
journal= {arXiv preprint arXiv:2007.11382},
year = {2020}
}
Comments
19 pages, 5 figures