Effect of short-range interaction for collision of ultracold dipoles
arXiv:1410.0545 · doi:10.1103/PhysRevA.90.062714
Abstract
We consider the low-energy scattering of two ultracold polarized dipoles with both a short-range interaction (SRI) and a weak dipole-dipole interaction (DDI) which is far away from shape-resonances. In previous analytical studies, the scattering amplitude in this system was often calculated via the first-order Born approximation (FBA). Our results show that significant derivations from this approximation can arise in some cases. In these cases, the SRI can significantly modify the inter-dipole scattering amplitudes even if the scattering amplitudes for the SRI alone are much smaller than the dipolar length of the DDI. We further obtain approximate analytical expressions for these inter-dipole scattering amplitudes.
Acknowledgement and some detail of the figures are updated
References in corpus (12)
- A High Phase-Space-Density Gas of Polar Molecules
- Bose-Einstein condensation of chromium
- Bose-Einstein Condensation of Erbium
- Observation of dipole-dipole interaction in a degenerate quantum gas
- Quantum degenerate dipolar Fermi gas
- Stabilizing a purely dipolar quantum gas against collapse
- d-wave collapse and explosion of a dipolar Bose-Einstein condensate
- Comparing contact and dipolar interaction in a Bose-Einstein condensate
- Observation of Fermi surface deformation in a dipolar quantum gas
- Low-energy resonances and bound states of aligned bosonic and fermionic dipoles
- An effective many-body theory for strongly interacting polar molecules
- Anisotropic Superfluidity in the Two-Species Polar Fermi Gas