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arXiv · 2412.06682

Direct observation of time-dependent coherent chiral tunneling dynamics

Wenhao Sun·Denis S. Tikhonov·Melanie Schnell
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Abstract

Superpositions of handed molecular states give rise to achiral eigenstates, delocalized across a double-well potential via tunneling. A coherent superposition of these energy eigenstates could dynamically relocalize the molecules into chiral states, which has only been addressed theoretically. Here, we present a microwave six-wave mixing pump-probe study to create and probe coherent chiral tunneling dynamics in a rotational state. Through a time-resolved scheme, we uncover the periodic time evolution of the induced chiral wavepacket under field-free conditions. Moreover, we demonstrate precise phase control of this coherence via phase modulation during pump excitation.

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Wenhao Sun, Denis S. Tikhonov, Melanie Schnell. 2024-12-09. Direct observation of time-dependent coherent chiral tunneling dynamics. https://doi.org/10.1103/physrevlett.134.123403

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