SAMOP 2021 – wissenschaftliches Programm

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SYCU: Symposium Chirality meets ultrafast

SYCU 1: Chirality meets ultrafast

SYCU 1.5: Hauptvortrag

Dienstag, 21. September 2021, 15:30–16:00, Audimax

Enantiomer-selective controllability of asymmetric top molecules — •Monika Leibscher — Theoretische Physik, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany

Three-wave mixing (3WM) spectroscopy of chiral molecules allows for enantio-selective population transfer despite random orientation of the molecules [1]. Three-wave mixing is usually regarded as a three-state process [2]. However, due to the M-degeneracy of the rotational spectrum, the underlying rotational dynamics is far more complex and the usual 3WM schemes do not reach complete selectivity.

We prove complete controllability for rotational states of an asymmetric top molecule and introduce the concept of enantiomer-selective controllability. This allows us to determine the conditions for complete enantiomer-specific population transfer in chiral molecules and to construct pulse sequences realizing this transfer for population initially distributed over degenerate M-states [3].

[1] D. Patterson, M. Schnell, and J. M. Doyle, Nature 497, 475 (2013). [2] M. Leibscher, T. F. Giesen, C. P. Koch, J. Chem. Phys. 151, 014302 (2019). [3] M. Leibscher, E. Pozzoli, C. Perez, M. Schnell, M. Sigalotti, U. Boscain, and C. P. Koch, arXiv:2010.09296 (2020).