Precisely spun super rotors

Ivan O. Antonov, Patrick R. Stollenwerk, Sruthi Venkataramanababu, Ana P. Lima Batista, Antonio G. S. Oliveira-Filho and Brian C. Odom ()
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Ivan O. Antonov: Northwestern University
Patrick R. Stollenwerk: Northwestern University
Sruthi Venkataramanababu: Applied Physics program, Northwestern University
Ana P. Lima Batista: Universidade de São Paulo
Antonio G. S. Oliveira-Filho: Universidade de São Paulo
Brian C. Odom: Northwestern University

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Improved optical control of molecular quantum states promises new applications including chemistry in the quantum regime, precision tests of fundamental physics, and quantum information processing. While much work has sought to prepare ground state molecules, excited states are also of interest. Here, we demonstrate a broadband optical approach to pump trapped SiO+ molecules into pure super rotor ensembles maintained for many minutes. Super rotor ensembles pumped up to rotational state N = 67, corresponding to the peak of a 9400 K distribution, had a narrow N spread comparable to that of a few-kelvin sample, and were used for spectroscopy of the previously unobserved C2Π state. Significant centrifugal distortion of super rotors pumped up to N = 230 allowed probing electronic structure of SiO+ stretched far from its equilibrium bond length.

Date: 2021
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DOI: 10.1038/s41467-021-22342-6

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