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arXiv · 2203.03410

Coarse-grained dynamics of ac-driven two-state systems

Nicola Macrì·Luigi Giannelli·Jishnu Rajendran·Elisabetta Paladino·Giuseppe Falci
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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.

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Nicola Macrì, Luigi Giannelli, Jishnu Rajendran, Elisabetta Paladino, Giuseppe Falci. 2022-03-07. Coarse-grained dynamics of ac-driven two-state systems. https://doi.org/10.1393/ncc%2Fi2022-22173-9

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