Freiburg 2024 – scientific programme

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MO: Fachverband Molekülphysik

MO 19: Chirality

MO 19.3: Talk

Thursday, March 14, 2024, 11:45–12:00, HS 3044

Purcell effect in chiral environments — •Omar Jesus Franca Santiago¹, Claudio Salvador Rapp¹, Janine Christine Franz², and Stefan Yoshi Buhmann¹ — ¹Institute of Physics, University of Kassel, Germany — ²University of Freiburg, Germany

The Purcell effect describes the modification of the spontaneous decay rate in the presence of electromagnetic media and bodies. In this work, we shed light on the dependencies and magnitude of this effect for chiral materials. Using the framework of macroscopic quantum electrodynamics [1,2] and Fermi's golden rule, we study a chiral bulk medium with and without local field corrections, an idealised chiral mirror and a chiral surface. The results imply that the chiral effect is greatest for large transition frequencies, molecules with large optical rotatory strength, and media with a strong cross-susceptibility. In the case of a surface, short distances from the molecule to the interface additionally enhance the effect.

[1] D.T. Butcher, S.Y. Buhmann, and S. Scheel, New J. Phys. 14, 113013 (2012).

[2] S. Y. Buhmann, Dispersion Forces II: Many-Body Effects, Excited Atoms, Finite Temperature and Quantum Friction, (Springer, Berlin Heidelberg, 2012).

Keywords: Purcell effect; Chirality; Macroscopic quantum electrodynamics; Quantum Effects