Dipolar Confinement-Induced Resonances of Ultracold Gases in Waveguides
Abstract
We develop a nonperturbative theoretical framework to treat collisions with generic anisotropic interactions in quasi-one-dimensional geometries. Our method avoids the limitations of pseudopotential theory and allows us to include accurately long-range anisotropic interactions. For ultracold dipolar collisions in a harmonic waveguide we predict dipolar confinement-induced resonances (DCIRs) which are attributed to different angular momentum states. The analytically derived resonance condition reveals in detail the interplay of the confinement with the anisotropic nature of the dipole-dipole interactions. The results are in excellent agreement with ab initio numerical calculations confirming the robustness of the presented approach. The exact knowledge of the positions of DCIRs may pave the way for the experimental realization of, e.g., Tonks-Girardeau-like or super-Tonks-Girardeau-like phases in effective one-dimensional dipolar gases.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2013
- DOI:
- 10.1103/PhysRevLett.111.183201
- arXiv:
- arXiv:1302.5632
- Bibcode:
- 2013PhRvL.111r3201G
- Keywords:
-
- 34.10.+x;
- 03.75.Be;
- 34.50.-s;
- General theories and models of atomic and molecular collisions and interactions;
- Atom and neutron optics;
- Scattering of atoms and molecules;
- Condensed Matter - Quantum Gases
- E-Print:
- 4 pages, 3 figures and supplemental material