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 K04: Atom-Atom and Atom-Molecule Collisions
10:30 AM–12:30 PM,
Wednesday, June 2, 2021
Chair: Gil Alexandrowicz, Swansea Univ.
Abstract: K04.00010 : A simple model to describe electric field shielding of two-body ultracold molecular collisions *
12:18 PM–12:30 PM
Live
Presenter:
Lucas Lassablière
(Université Paris-Saclay, CNRS, Laboratoire Aimé Cotton, Orsay, France)
Authors:
Lucas Lassablière
(Université Paris-Saclay, CNRS, Laboratoire Aimé Cotton, Orsay, France)
Goulven Quéméner
(Université Paris-Saclay, CNRS, Laboratoire Aimé Cotton, Orsay, France)
We focus here on a static electric field shielding which was proposed some years ago [1, 2, 3] and has been recently observed in confined [4] and non-confined geometries [5], leading to efficient evaporative cooling. We propose a theoretical model that can describe the main physical property of the shielding mechanism and semi-quantitatively approximate the electric field dependence of the rate coefficients around the shielding region, with no computational effort. The formalism can also illustrate the angular dependence of the shield at the microscopic level.
[1] Avdeenkov et al., Phys. Rev. A 73, 022707 (2006)
[2] Wang et al., New J. Phys. 17, 035015 (2015)
[3] Gonzalez-Martinez et al., Phys. Rev. A 96, 032718 (2017)
[4] Matsuda et al., Science 370, 1324 (2020)
[5] Li et al., submitted
*We acknowledge the financial support of the FEW2MANY-SHIELD project from Agence Nationale de la Recherche in France, grant n° ANR-17-CE30-0015-01.
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