Actions

Download Analytics Citations

Export to: EndNote  |  Zotero  |  Mendeley

Collections

This file is not currently in any collections.

Preparation of 87Rb and 133Cs in the motional ground state of a single optical tweezer [dataset] Open Access

We report simultaneous Raman sideband cooling of a single $^{87}$Rb atom and a single $^{133}$Cs atom held in separate optical tweezers at 814\,nm and 938\,nm, respectively. \slc{Starting from outside the Lamb-Dicke regime, after 45\,ms of cooling we measure probabilities to occupy the three-dimensional motional ground state of 0.86$^{+0.03}_{-0.04}$ for Rb and 0.95$^{+0.03}_{-0.04}$ for Cs.} Our setup overlaps the Raman laser beams used to cool Rb and Cs, reducing hardware requirements by sharing equipment along the same beam path. The cooling protocol is scalable, and we demonstrate cooling of single Rb atoms in an array of four tweezers. After motional ground-state cooling, a 938\,nm tweezer is translated to overlap with a 814\,nm tweezer so that a single Rb and a single Cs atom can be transferred into a common 1064\,nm trap. By minimising the heating during the merging and transfer, we prepare the atoms in the relative motional ground state with an efficiency of 0.81$^{+0.08}_{-0.08}$. This is a crucial step towards the association of arrays of single RbCs molecules confined in optical tweezers.

Descriptions

Resource type

Dataset

Contributors

Creator: Spence, Stefan ¹
Contact person: Spence, Stefan ¹
Data collector: Spence, Stefan ¹
Creator: Brooks, Ralph Vincent ¹
Creator: Ruttley, Daniel K ¹
Creator: Guttridge, Alexander ¹
Contact person: Guttridge, Alexander ¹
Data collector: Guttridge, Alexander ¹
Creator: Cornish, Simon Lee ¹
Contact person: Cornish, Simon Lee ¹

¹ Durham University, UK

Funder

Engineering and Physical Sciences Research Council
Durham University

Research methods

Raman sideband cooling of single atoms in optical tweezers

Other description

Keyword

Ultracold molecues
Merging
Array
Raman sideband cooling
Optical tweezers

Subject

Location

Language

Cited in

Identifier

ark:/32150/r1f4752g787
doi:10.15128/r1f4752g787

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

S.J. Spence

Date Uploaded

19 May 2022, 00:05:14

Date Modified

3 September 2022, 12:09:27

Audit Status

Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 62197681

Last modified: 2022:09:03 12:41:13+01:00

Filename: Preparation_of_motional_ground_state_2022.zip

Original checksum: 486dd528927eda50efd0f85fb5f5b12d