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http://acervodigital.unesp.br/handle/11449/74828
- Title:
- Mass-imbalanced three-body systems in two dimensions
- Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
- Instituto de Fomento e Coordenação Industrial (IFI)
- Aarhus University (AU)
- Universidade Estadual Paulista (UNESP)
- 0953-4075
- 1361-6455
- We consider three-body systems in two dimensions with zero-range interactions for general masses and interaction strengths. The momentum-space Schrödinger equation is solved numerically and in the Born-Oppenheimer (BO) approximation. The BO expression is derived using separable potentials and yields a concise adiabatic potential between the two heavy particles. The BO potential is Coulomb-like and exponentially decreasing at small and large distances, respectively. While we find similar qualitative features to previous studies, we find important quantitative differences. Our results demonstrate that mass-imbalanced systems that are accessible in the field of ultracold atomic gases can have a rich three-body bound state spectrum in two-dimensional geometries. Small light-heavy mass ratios increase the number of bound states. For 87Rb-87Rb-6Li and 133Cs- 133Cs-6Li we find respectively three and four bound states. © 2013 IOP Publishing Ltd.
- 14-Mar-2013
- Journal of Physics B: Atomic, Molecular and Optical Physics, v. 46, n. 5, 2013.
- Adiabatic potentials
- Born-Oppenheimer approximation
- Bound state
- Bound-state spectrum
- Dinger equation
- Heavy particles
- Interaction strength
- Mass ratio
- Qualitative features
- Separable potential
- Three body
- Three-body systems
- Two-dimension
- Two-dimensional geometry
- Ultracold atomic gas
- Zero range interaction
- Lithium
- Rubidium
- Cesium
- http://dx.doi.org/10.1088/0953-4075/46/5/055301
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/74828
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