| A remark on helical waveguides (2007) | |||||||||
Abstract | |||||||||
| Motivated by a proposal to create an optical helix-shaped waveguides for cold atoms and molecules, we discuss local perturbations which can create bound states in such a setting. This is known about a local slowdown of the twist; we show that a similar effect can result from a local tube protrusion or a change of the helix radius in correlation with its pitch angle.. Comment: LaTeX, 12 pages | |||||||||
Publication details | |||||||||
| |||||||||