3 papers
physics.optics2026
Mode-Selective and Anharmonicity-Controlled Energy Transport in Cavity-Coupled Water
Sachith Wickramasinghe, Michael Fowler, Gerrit Groenhof +1
Recent experiments demonstrate the modification of chemical dynamics via cavity-enhanced vibrational energy transport. Here, we provide a microscopic account of both photonic and m…
physics.chem-ph2025
On-the-Fly Cavity-Molecular Dynamics of Vibrational Polaritons
Sachith Wickramasinghe, Amirhosein Amini, Arkajit Mandal
In this work, we combine the density functional tight-binding (DFTB) approach with a light-matter Hamiltonian beyond the long-wavelength approximation to propagate the dynamics of…
cond-mat.mtrl-sci2025
Mean-field Mixed Quantum-Classical Approach for Many-Body Quantum Dynamics of Exciton-Polaritons
Pritha Ghosh, Arshath Manjalingal, Sachith Wickramasinghe +2
In this work, we use a mixed quantum-classical (mean-field) many-body approach for simulating the quantum dynamics of excitons and exciton-polaritons beyond the single-excitation s…