A remark on helical waveguides
Quantum Physics
2019-12-10 v1 Mesoscale and Nanoscale Physics
Mathematical Physics
math.MP
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.
Keywords
Cite
@article{arxiv.0704.2770,
title = {A remark on helical waveguides},
author = {Pavel Exner and Martin Fraas},
journal= {arXiv preprint arXiv:0704.2770},
year = {2019}
}