Abstract
Mixtures of polarized fermions of two different masses can form weakly bound clusters, such as dimers and trimers, that are universally described by the scattering length between the heavy and light fermions. We use the resonating group method to investigate the low-energy scattering processes involving dimers or trimers. The method reproduces approximately the known particle-dimer and dimer-dimer scattering lengths. We use it to estimate the trimer-trimer scattering length, which is presently unknown, and find it to be positive.
Original language | English |
---|---|
Article number | 034002 |
Pages (from-to) | 1-12 |
Number of pages | 12 |
Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
Volume | 49 |
Issue number | 3 |
DOIs | |
Publication status | Published - 8 Jan 2016 |
Externally published | Yes |
Keywords
- Efimov effect
- few-body problems
- few-body universality
- resonating group method
- ultra-cold atoms