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arXiv · 2501.05416

Analytical control of the exchange interaction in periodically driven Mott insulators

Miguel Tierz
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Abstract

The manipulation of electronic structure through periodic electric fields enables the reversible control of effective interactions in extended antiferromagnetic Mott insulators on ultrafast timescales. A careful analytical examination of the modulated effective interactions is conducted, accurately characterising it through the use of exact summation formulas and Bessel functions. As a result, time reversals are analytically determined in terms of Bessel zeroes. We discuss the half-filled Hubbard model, as well as multi-orbital models, various characteristics of the Kitaev-Heisenberg model, and the emergence of chiral spin terms.

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Miguel Tierz. 2025-01-09. Analytical control of the exchange interaction in periodically driven Mott insulators. https://arxiv.org/abs/2501.05416

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