Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

M. Borkowski, R. Ciuryło, P. S. Julienne, S. Tojo, K. Enomoto, and Y. Takahashi
Phys. Rev. A 80, 012715 – Published 29 July 2009

Abstract

The properties of bosonic ytterbium photoassociation spectra near the intercombination transition S10P31 are studied theoretically at ultralow temperatures. We demonstrate how the shapes and intensities of rotational components of optical Feshbach resonances are affected by mass tuning of the scattering properties of the two colliding ground-state atoms. Particular attention is given to the relationship between the magnitude of the scattering length and the occurrence of shape resonances in higher partial waves of the van der Waals system. We develop a mass-scaled model of the excited-state potential that represents the experimental data for different isotopes. The shape of the rotational photoassociation spectrum for various bosonic Yb isotopes can be qualitatively different.

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  • Received 15 April 2009

DOI:https://doi.org/10.1103/PhysRevA.80.012715

©2009 American Physical Society

Authors & Affiliations

M. Borkowski1, R. Ciuryło1, P. S. Julienne2, S. Tojo3, K. Enomoto4, and Y. Takahashi5

  • 1Instytut Fizyki, Uniwersytet Mikołaja Kopernika, ul. Grudziadzka 5/7, 87-100 Toruń, Poland
  • 2Joint Quantum Institute, National Institute of Standards and Technology, University of Maryland, 100 Bureau Drive, Stop 8423, Gaithersburg, Maryland 20899-8423, USA
  • 3Department of Physics, Faculty of Science, Gakushuin University, Tokyo 171-8588, Japan
  • 4Department of Physics, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
  • 5Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan

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Vol. 80, Iss. 1 — July 2009

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