SAMOP 2023 – scientific programme
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QI: Fachverband Quanteninformation
QI 32: Quantum Optics and Quantum Information with Rigid Rotors (joint session MO/Q/QI)
QI 32.7: Talk
Thursday, March 9, 2023, 16:00–16:15, F102
Experimental advances in the quest for perfect enantiomer-specific state control of cold molecules — •Juhyeon Lee1, Johannes Bischoff1, Alicia. O. Hernandez-Castillo2, Boris Sartakov1, Gerard Meijer1, and Sandra Eibenberger-Arias1 — 1Fritz Haber Institute of the Max Planck Society, Berlin, Germany — 2Harvey Mudd College, Claremont, Callifornia, USA
Enantiomer-specific state transfer (ESST) was recently developed using tailored microwave fields [1]. This technique enables the population or depopulation of a rotational state of a chosen enantiomer, providing a way of quantum-controlled chiral separation. Recently, we have explored spectroscopic schemes to overcome previous limitations in the transfer efficiency of ESST: thermal population of the rotational levels and MJ degeneracy [2]. We improved the transfer efficiency up to 50%, and quantitatively studied ESST for the first time [3]. The experimental ESST efficiency was ∼20% lower than theoretically expected. We attribute this partially to imperfections in the microwave polarizations and their respective orthogonality. We show a method to experimentally determine the polarization of microwave fields in-situ by quantitative analysis of molecular Rabi oscillations.
[1] S. Eibenberger, et al., Phys. Rev. Lett. 118, 123002 (2017)
[2] M. Leibscher, et al., Commun. Phys. 5, 1 (2022).
[3] J. H. Lee, et al., Phys. Rev. Lett. 128, 173001 (2022)