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Single-particle momentum distributions of Efimov states in mixed-species systems

M. T. Yamashita1, F. F. Bellotti2,3,4, T. Frederico2, D. V. Fedorov3, A. S. Jensen3, and N. T. Zinner3

  • 1Instituto de Física Teórica, UNESP–Univ Estadual Paulista, C.P. 70532-2, CEP 01156-970, São Paulo, SP, Brazil
  • 2Instituto Tecnológico de Aeronáutica, 12228-900, São José dos Campos, SP, Brazil
  • 3Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
  • 4Instituto de Fomento e Coordenação Industrial, 12228-901, São José dos Campos, SP, Brazil

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Phys. Rev. A 87, 062702 – Published 4 June, 2013Erratum Phys. Rev. A 107, 059902 (2023)

DOI: https://doi.org/10.1103/PhysRevA.87.062702

Abstract

We solve the three-body bound-state problem in three dimensions for mass imbalanced systems of two identical bosons and a third particle in the universal limit where the interactions are assumed to be of zero range. The system displays the Efimov effect and we use the momentum-space wave equation to derive formulas for the scaling factor of the Efimov spectrum for any mass ratio assuming either that two or three of the two-body subsystems have a bound state at zero energy. We consider the single-particle momentum distribution analytically and numerically and analyze the tail of the momentum distribution to obtain the three-body contact parameter. Our findings demonstrate that the functional form of the three-body contact term depends on the mass ratio, and we obtain an analytic expression for this behavior. To exemplify our results, we consider mixtures of lithium with either two caesium or rubidium atoms which are systems of current experimental interest.

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Erratum

Erratum: Single-particle momentum distributions of Efimov states in mixed-species systems [Phys. Rev. A 87, 062702 (2013)]

M. T. Yamashita, F. F. Bellotti, T. Frederico, D. V. Fedorov, A. S. Jensen, and N. T. Zinner
Phys. Rev. A 107, 059902 (2023)

Article Text

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Phys. Rev. A 87, 062702– Published 4 June, 2013
  • Received 23 March 2013

©2013 American Physical Society

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