Bounds for nonadiabatic transitions
Quantum Physics
2020-07-17 v2 Statistical Mechanics
Abstract
We discuss bounds for nonadiabatic transitions from the viewpoints of the adiabatic perturbation theory and the quantum speed limit. We show that the amount of nonadiabatic transitions from the th level to the th level is bounded by a function of the quantum geometric tensor for the th level. We analyze this bound from the viewpoint of the adiabatic perturbation theory. In addition, this bound and the viewpoint of the quantum speed limit suggest nontrivial relationship between the dynamical transformation and the adiabatic transformation. We also derive a universal bound for any nonadiabatic transition. This bound is written in terms of the counterdiabatic Hamiltonian.
Keywords
Cite
@article{arxiv.2005.03284,
title = {Bounds for nonadiabatic transitions},
author = {Takuya Hatomura and Go Kato},
journal= {arXiv preprint arXiv:2005.03284},
year = {2020}
}