Thermalization of a trapped single atom with an atomic thermal bath

Rahul Sawant; Anna Maffei; Giovanni Barontini

doi:10.3390/app11052258

Thermalization of a trapped single atom with an atomic thermal bath

Rahul Sawant^*, Anna Maffei, Giovanni Barontini

^*Corresponding author for this work

Physics and Astronomy

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

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Abstract

We studied a single atom trapped in an optical tweezer interacting with a thermal bath of ultracold atoms of a different species. Because of the collisions between the trapped atom and the bath atoms, the trapped atom undergoes changes in its vibrational states occupation to reach thermal equilibrium with the bath. By using Monte Carlo simulations, we characterized the single atom’s thermalization process, and we studied how this can be used for cooling. Our simulations demonstrate that, within known experimental limitations, it is feasible to cool a trapped single atom with a thermal bath.

Original language	English
Article number	2258
Journal	Applied Sciences (Switzerland)
Volume	11
Issue number	5
DOIs	https://doi.org/10.3390/app11052258
Publication status	Published - 4 Mar 2021

Bibliographical note

Funding Information:
Funding: All authors are supported by the Leverhulme Trust Research Project Grant UltraQuTe (grant number RGP-2018-266). A.M. is supported by the Erasmus programme.

Keywords

Heteronuclear interactions
Single atom
Thermalization

ASJC Scopus subject areas

Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

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Cite this

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Thermalization of a trapped single atom with an atomic thermal bath

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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