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Plasmonics, strong field processes, attosecond dynamics, and electron spectroscopy

Cutting Edge Research

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Research Focus

We use real-time electronic structure methods, typically real-time time-dependent density functional theory (RT-TDDFT). RT-TDDFT is a density-functional-based approach to electronic excited states which solves the time-dependent Kohn-Sham equations by propagating the wavefunction or density matrix in real-time.

Although it shares many of the limitations of traditional linear-response TDDFT, RT-TDDFT yields a full time-resolved, potentially non-linear solution. Real-time simulations can be used to compute not only spectroscopic properties (e.g., absorption spectra, polarizabilites, etc), but also the time and space-resolved electronic response to arbitrary external stimuli (e.g., electron charge dynamics after laser excitation).

Recent Publications

A multiscale hybrid quantum/classical approach using classical electrodynamics and a collection of discrete three-level quantum systems is used to simulate the coupled dynamics and spectra of a malachite green monolayer adsorbed to the surface of a spherical gold nanoparticle (NP).

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Selected Publications

A method for accelerating the computation of UV–visible and X-ray absorption spectra in large molecular systems using real-time time-dependent density functional theory (TDDFT).

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