Miniature atom bottle traps enabled by chiral doughnut light

Vasileios E. Lembessis; Koray Koksal; Mohamed Babiker; And J.U.N. Yuan

doi:10.1364/OE.516270

Miniature atom bottle traps enabled by chiral doughnut light

Vasileios E. Lembessis, Koray Koksal, Mohamed Babiker, And J.U.N. Yuan^*

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We highlight what we believe to be a novel optical set-up which enables the confinement of cold atoms in a finite set of sub-wavelength bottle traps. This involves two counter-propagating vortex beams with the same winding number ℓ = ±1 and the same circular polarization ($\sigma =\mp 1)$. Strong focusing generates significant longitudinal field components which become responsible for an on-axis standing wave enabling the axial confinement of far blue-detuned atoms. The off-axis radial confinement is provided by the optical potential due to the transverse components of the light. The trap characteristics are illustrated using experimentally accessible parameters and are tunable by changing the power, focusing and ellipticity of the light. Atoms trapped in such a set-up are useful for applications, including quantum simulation and quantum information processing.

Original language	English
Pages (from-to)	13450-13466
Number of pages	17
Journal	Optics Express
Volume	32
Issue number	8
Early online date	27 Mar 2024
DOIs	https://doi.org/10.1364/OE.516270
Publication status	Published - 8 Apr 2024

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Miniature atom bottle traps enabled by chiral doughnut light
© 2024 Optica Publishing Group (formerly OSA).
Final published version, 8.02 MBLicence: CC BY

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Miniature atom bottle traps enabled by chiral doughnut light

Abstract

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