Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic Molecules

Autor:	Löw, Maximilian, Ibrügger, Martin, Rempe, Gerhard, Zeppenfeld, Martin
Rok vydání:	2024
Předmět:	Physics - Atomic Physics Physics - Chemical Physics Quantum Physics
Druh dokumentu:	Working Paper
Popis:	Polar polyatomic molecules provide an ideal but largely unexplored platform to encode qubits in rotational states. Here, we trap cold (100-600 mK) formaldehyde (H$_2$CO) inside an electric box and perform a Ramsey-type experiment to observe long-lived (~100 $\mu$s) coherences between symmetry-protected molecular states with opposite rotation but identical orientation, representing a quasi-hidden molecular degree of freedom. As a result, the observed qubit is insensitive to the magnitude of an external electric field, and depends only weakly on magnetic fields. Our findings provide a basis for future quantum and precision experiments with trapped cold molecules. Comment: Main paper 6 pages, 3 figures; in total 8 pages, 4 figures. Submitted to PRL
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.00775 Zobrazit plný text záznamu View this record from Arxiv