Oscillation Frequencies for Simultaneous Trapping of Heteronuclear Alkali Atoms

TL;DR

This paper explores conditions for simultaneously trapping different alkali atoms in optical lattices by identifying magic wavelengths where their oscillation frequencies match, facilitating studies of mixed atomic systems.

Contribution

It provides numerical analysis of magic trapping wavelengths for various alkali atom combinations, including a universal wavelength for Li, K, and Rb.

Findings

Identified wavelengths for simultaneous trapping of different alkali atoms.

Discovered a universal wavelength around 808.1 nm for Li, K, and Rb.

Enhanced understanding of trapping conditions for mixed atomic systems.

Abstract

We investigate oscillation frequencies for simultaneous trapping of more than one type of alkali atoms in a common optical lattice. For this purpose, we present numerical results for magic trapping conditions, where the oscillation frequencies for two different kind of alkali atoms using laser lights in the wavelength range 500-1200 nm are same. These wavelengths will be of immense interest for studying static and dynamic properties of boson-boson, boson-fermion, fermion-fermion, and boson-boson-boson mixtures involving different isotopes of Li, Na, K, Rb, Cs and Fr alkali atoms. In addition to this, we were also able to locate a magic wavelength around 808.1 nm where all the three Li, K, and Rb atoms are found to be suitable for oscillating at the same frequency in a common optical trap.