Speaker
Description
In this poster, we present near-complete chiral selection in rotational quantum states [1]. In our study we combine UV laser and microwave radiation to realize near-ideal initial conditions for Enantiomer-Specific State Transfer (ESST). With this we overcome previous limitations of ESST due to initial thermal population in all three states in a triad of rotational states connected to the absolute ground state. Our results show that 96% state-specific enantiomeric purity can be obtained from a racemic mixture, in an approach that is universally applicable to all chiral molecules of C1 symmetry. With its capability to create enantiopure quantum states starting from a racemic mixture, this approach has the potential to significantly advance the experimental methods to measure parity-violation effects in chiral molecules [2].
We will also present information on ongoing efforts to address triads of rotational states with higher orientational degeneracy which are intrinsically more difficult to control. For this, we will incorporate theoretically tailored pulse schemes particularly designed to overcome this challenge [3].
[1] JuHyeon Lee, Elahe Abdiha, Boris Sartakov, Gerard Meijer, Sandra Eibenberger-Arias,
Nature Communications 15, 7441 (2024)
[2] I. Erez, E. R. Wallach, and Y. Shagam. Phys. Rev. X, 13, 041025, (2023)
[3] M. Leibscher, E. Pozzoli, C. Pérez, M. Schnell, M. Sigalotti, U. Boscain, C. P. Koch, Commun Phys 5, 110 (2022).
