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Mass-imbalanced Three-body Systems in 2D: bound states and the analytical approach to the adiabatic potential

Authors
  • Bellotti, F. F.
  • Frederico, T.
  • Yamashita, M. T.
  • Fedorov, D. V.
  • Jensen, A. S.
  • Zinner, N. T.
Type
Published Article
Publication Date
Nov 11, 2014
Submission Date
Nov 11, 2014
Identifiers
DOI: 10.1007/s00601-014-0842-2
Source
arXiv
License
Yellow
External links

Abstract

Three-body systems in two dimensions with zero-range interactions are considered for general masses and interaction strengths. The problem is formulated in momentum space and the numerical solution of the Schr\"odinger equation is used to study universal properties of such systems with respect to the bound-state energies. The number of universal bound states is represented in a form of boundaries in a mass-mass diagram. The number of bound states is strongly mass dependent and increases as one particle becomes much lighter than the other ones. This behavior is understood through an accurate analytical approximation to the adiabatic potential for one light particle and two heavy ones.

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