Superconducting microwave cavity towards controlling the motion of polar molecules |
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Authors: | Katsunari Enomoto Pavle Djuricanin Ilja Gerhardt Omid Nourbakhsh Yoshiki Moriwaki Walter Hardy Takamasa Momose |
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Institution: | 1. Department of Physics, University of Toyama, 3190 Gofuku, Toyama, 930-8555, Japan 2. Department of Chemistry, The University of British Columbia, Vancouver, BC V6T 1Z1, Canada 3. Department of Physics and Astronomy, The University of British Columbia, Vancouver, BC V6T 1Z1, Canada
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Abstract: | We propose the use of superconducting microwave cavities for the focusing and deceleration of cold polar molecular beams. A superconducting cavity with a high quality factor produces a large ac Stark shift in polar molecules, which allow us to efficiently control molecular motion. Our discussion is based on the experimental characterization of a prototype cavity: a lead–tin-coated cylindrical copper cavity, which has a quality factor of 106 and tolerates several watts of input power. Such a microwave device provides a powerful way to control molecules not only in low-field-seeking states, but also in high-field-seeking states such as the ground rotational state. |
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