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MO: Fachverband Molekülphysik

MO 11: Poster – Polaritonic Effects in Molecular Systems (joint session MO/Q)

MO 11.4: Poster

Dienstag, 11. März 2025, 14:00–16:00, Tent

Chemical reaction rate of molecules in a cavity — •Yannic Joshua Banthien¹, Abraham Nitzan², and Michael Thorwart¹ — ¹I. Institut für Theoretische Physik, Universita*t Hamburg, Notkestraße 9, 22607 Hamburg, Germany — ²Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA

We determine the reaction dynamics of N identical molecular systems, each represented by a particle in a double-well potential and each coupled to the same broadened mode of an optical cavity. Every reaction system is restricted to its lowest four energy eigenstates of the double well, forming a doublet-doublet system. A Markovian approximated master equation is set up following the Feynman-Vernon approach. It is constructed for the purpose of strong system-bath interaction. We solve for the time evolution of the quantum many-body system and extract the inter- and intra-well relaxation rates, leading to the chemical reaction rate. We study the impact of the common cavity mode on the reaction rate, determine the condition under which a Rabi splitting is found, and reveal emerging cooperative effects in the transfer rate.

Keywords: Polaritronics; Cavity; Chemical; Reaction; Rate