Dual-species Optical tweezer for Rb and K atoms

Fuente: arXiv
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Main Authors: Wei, Yangbo, Wei, Kedi, Li, Shangjin, Yan, Bo
Format: Preprint
Published: 2024
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author Wei, Yangbo
Wei, Kedi
Li, Shangjin
Yan, Bo
author_facet Wei, Yangbo
Wei, Kedi
Li, Shangjin
Yan, Bo
contents The optical tweezer experiment with neutral atoms is a focal topic in cold atom physics due to its significant potential in quantum computing and simulation. Here, we present the realization of a dual-species optical tweezer for both Rb and K atoms, marking the first step towards creating a polar molecule optical tweezer array. Initially, Rb and K atoms are collected using a dual magneto-optical trap (MOT) and further cooled to 7 $μ$K for Rb and 10 $μ$K for K. By employing 850 nm tweezer beams, we demonstrate the ability to capture individual Rb or K atoms. The filling ratios of Rb and K can be finely adjusted by controlling the atomic densities of both species. Utilizing the post-selection technique, we can create a deterministic array of two-species atoms, paving the way for future polar molecule array formation.
format Preprint
id arxiv_https___arxiv_org_abs_2410_20761
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Dual-species Optical tweezer for Rb and K atoms
Wei, Yangbo
Wei, Kedi
Li, Shangjin
Yan, Bo
Atomic Physics
Quantum Gases
The optical tweezer experiment with neutral atoms is a focal topic in cold atom physics due to its significant potential in quantum computing and simulation. Here, we present the realization of a dual-species optical tweezer for both Rb and K atoms, marking the first step towards creating a polar molecule optical tweezer array. Initially, Rb and K atoms are collected using a dual magneto-optical trap (MOT) and further cooled to 7 $μ$K for Rb and 10 $μ$K for K. By employing 850 nm tweezer beams, we demonstrate the ability to capture individual Rb or K atoms. The filling ratios of Rb and K can be finely adjusted by controlling the atomic densities of both species. Utilizing the post-selection technique, we can create a deterministic array of two-species atoms, paving the way for future polar molecule array formation.
title Dual-species Optical tweezer for Rb and K atoms
topic Atomic Physics
Quantum Gases
url https://arxiv.org/abs/2410.20761