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Quantum chaos in ultracold collisions between Yb($^1S_0$) and Yb($^3P_2$).

Green, D. G. and Vaillant, C. L. and Frye, M. D. and Morita, M. and Hutson, J. M. (2016) 'Quantum chaos in ultracold collisions between Yb($^1S_0$) and Yb($^3P_2$).', Physical review A., 93 (2). 022703.

Abstract

We calculate and analyze Feshbach resonance spectra for ultracold Yb(1S0)+Yb(3P2) collisions as a function of an interatomic potential scaling factor λ and external magnetic field. We show that, at zero field, the resonances are distributed randomly in λ, but that signatures of quantum chaos emerge as a field is applied. The random zero-field distribution arises from superposition of structured spectra associated with individual total angular momenta. In addition, we show that the resonances with respect to magnetic field in the experimentally accessible range of 400 to 2000 G are chaotically distributed, with strong level repulsion that is characteristic of quantum chaos.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevA.93.022703
Publisher statement:Reprinted with permission from the American Physical Society: Green, D. G. and Vaillant, C. L. and Frye, M. D. and Morita, M. and Hutson, J. M. (2016) 'Quantum chaos in ultracold collisions between Yb($^1S_0$) and Yb($^3P_2$).', Physical review A., 93 (2). 022703 © 2016 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
Date accepted:14 January 2016
Date deposited:19 February 2016
Date of first online publication:04 February 2016
Date first made open access:19 February 2016

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