Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 42: Open Quantum Systems I (joint session Q/QI)
Q 42.2: Vortrag
Mittwoch, 12. März 2025, 15:00–15:15, HS I
Accurate Master Equation Formalism for Molecular Quantum Optics Systems — •Burak Gurlek1, Claudiu Genes2, and Angel Rubio1,3 — 1Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany — 2Max Planck Institute for the Science of Light, Erlangen, Germany — 3Center for Computational Quantum Physics, The Flatiron Institute, New York, USA
Molecules are compact, hybrid quantum systems that provide access to electronic, vibrational and spin degrees of freedom spanning a broad range of energy and time scales. They already been shown to realize efficient single-photon sources and nonlinear quantum optical element, and hold great promise for advancing quantum technologies. These developments require a thorough understanding of complex molecular interactions in open quantum settings, typically modeled using the standard Lindblad master equation formalism.
In this work, we demonstrate that strong optomechanical interactions in an important class of dye molecules lead to couplings between reservoirs within the standard master equation framework, resulting in erroneous predictions. To address this, we derive a dressed master equation, and recover previous experimental observations. We complement this with analytical expressions for spectral observables derived from quantum Langevin equations, using a standard master equation in the polaron frame. Our results highlight the importance of strong optomechanical interactions in molecular systems and demonstrate how to accurately account for these effects in the dynamics of open molecular quantum system.
Keywords: Open quantum system; Single-molecule spectroscopy; Quantum optics; Master equation; Solid-state emitters