Floquet Nonadiabatic Mixed Quantum-Classical Dynamics in Laser-Dressed Solid Systems
arxiv(2024)
摘要
In this paper, we introduce the Floquet Ehrenfest and Floquet surface hopping
approaches to study the nonadiabatic dynamics in the laser-dressed solid
systems. We demonstrate that these two approaches can be formulated in both
real and reciprocal spaces. Using these approaches, we are able to simulate the
interaction between electronic carriers and phonons under periodic drivings,
such as strong light-matter interactions. Employing the Holstein and Peierls
models, we show that the strong light-matter interactions can effectively
modulate the dynamics of electronic population and mobility. Notably, our study
demonstrates the feasibility and effectiveness of modeling low-momentum
carriers' interactions with phonons using a truncated reciprocal-space basis,
an approach impractical in real-space frameworks. Moreover, we reveal that even
with significant truncation, carrier populations derived from surface hopping
maintain greater accuracy compared to those obtained via meanfield dynamics.
These results underscore the potential of our proposed methods in advancing the
understanding of carrier-phonon interactions in various laser-dressed
materials.
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