Bulletin of the American Physical Society
52nd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 66, Number 6
Monday–Friday, May 31–June 4 2021; Virtual; Time Zone: Central Daylight Time, USA
Session X08: Collisions, Reactions, and Field Control of Cold and Ultracold Molecules
8:00 AM–10:00 AM,
Friday, June 4, 2021
Chair: Timur Tscherbul, University of Nevada, Reno
Abstract: X08.00007 : Elastic and inelastic collisions of C60 in buffer gases probed by nonlinear spectroscopy
9:12 AM–9:24 AM
Live
Presenter:
Lee Liu
(University of Colorado, Boulder)
Authors:
Lee Liu
(University of Colorado, Boulder)
P. Bryan Changala
(Harvard-Smithsonian Center for Astrophysics)
Jutta Toscano
(University of Colorado, Boulder)
Qizhong Liang
(University of Colorado, Boulder)
Marissa Weichman
(Princeton University)
Jun Ye
(University of Colorado, Boulder)
We have developed sensitive and nonlinear mid-infrared rovibrational spectroscopy to further probe and manipulate quantum states of buffer gas-cooled C60. Nonlinear absorption spectra reveal signatures of elastic and inelastic cross sections of the C60 - buffer gas collisions. While the enormous vibrational partition function of C60 demands use of heavier buffer gases, preliminary results suggest that effective rotational cooling may be achieved with gases of lighter atoms and molecules. These results may pave the way for efficient buffer gas cooling of unprecedentedly large molecules and establish C60 as a new platform for quantum science.
[1] P. B. Changala, M. L. Weichman, K. F. Lee, M. E. Fermann, J. Ye, Science 363, 49 (2019)
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