Coarse-grained dynamics of ac-driven two-state systems
Quantum Physics
2022-09-23 v1
Abstract
Magnus expansion is used to identify effective Hamiltonians describing the coarse-grained dynamics of more complex problems. Here, we apply this method to a two-level system driven by an and AC field. We derive Stark and Bloch-Siegert shifs of both diagonal and off-diagonal entries of the Hamiltonian as a result of coarse-graining only.
Cite
@article{arxiv.2203.03410,
title = {Coarse-grained dynamics of ac-driven two-state systems},
author = {Nicola Macrì and Luigi Giannelli and Jishnu Rajendran and Elisabetta Paladino and Giuseppe Falci},
journal= {arXiv preprint arXiv:2203.03410},
year = {2022}
}