Magic wavelengths for trapping the alkali-metal atoms with circularly polarized light

TL;DR

This paper identifies specific magic wavelengths for trapping alkali-metal atoms using circularly polarized light, enabling state-insensitive trapping across different alkali species and transitions.

Contribution

It extends previous work by calculating magic wavelengths for Li, Na, and K atoms in various transitions with circular polarization, providing detailed comparisons with linear polarization.

Findings

Magic wavelengths are identified for Li, Na, and K atoms.

Circular polarization enables state-insensitive trapping.

Explicit dynamic polarizabilities are provided at key wavelengths.

Abstract

Extending the search for the magic wavelengths using the circularly polarized light in rubidium [Phys. Rev. A 86, 033416 (2012)], we pursue here to look for the magic wavelengths in the $ns-np_{1/2,3/2}$ transitions of Li, Na and K alkali atoms. These wavelengths for all possible sub-levels are given and compared with the corresponding wavelengths due to the linearly polarized light. We have also mentioned explicitly the dynamic polarizabilities at few important wave lengths. The present study suggests that it is possible to carry out state insensitive trapping of different alkali atoms using the circularly polarized light.