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Light-assisted collisions in tweezer-trapped lanthanides

Grün, D. S. ; Giacomelli, L. Bellinato ; Tashchilina, A. ; Donofrio, R. ; Borchers, F. ; Bland, T. LU orcid ; Mark, M. J. and Ferlaino, F. (2026) In Physical Review Research 8(2).
Abstract

We present a quantitative investigation of one- and two-body light-mediated processes that occur to few erbium atoms in an optical tweezer, when exposed to near-resonant light. In order to study the intertwined effects of recoil heating, cooling, and light-assisted collisions, we develop a first-principles Monte Carlo algorithm that solves the coupled dynamics of both the internal and external degrees of freedom of the atoms. After validating our theoretical model against experimental data, we use the predictive power of our code to guide our experiment and, in particular, we explore the performance of different transitions of erbium for light-assisted collisions in terms of their efficiency and fidelity for single-atom preparation.

Please use this url to cite or link to this publication:
author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
8
issue
2
article number
023067
publisher
American Physical Society
external identifiers
  • scopus:105036680070
ISSN
2643-1564
DOI
10.1103/rkn3-8rc9
language
English
LU publication?
yes
id
8b85f819-dd51-45e7-85ec-176ab598de1c
date added to LUP
2026-06-01 14:47:25
date last changed
2026-06-01 14:47:46
@article{8b85f819-dd51-45e7-85ec-176ab598de1c,
  abstract     = {{<p>We present a quantitative investigation of one- and two-body light-mediated processes that occur to few erbium atoms in an optical tweezer, when exposed to near-resonant light. In order to study the intertwined effects of recoil heating, cooling, and light-assisted collisions, we develop a first-principles Monte Carlo algorithm that solves the coupled dynamics of both the internal and external degrees of freedom of the atoms. After validating our theoretical model against experimental data, we use the predictive power of our code to guide our experiment and, in particular, we explore the performance of different transitions of erbium for light-assisted collisions in terms of their efficiency and fidelity for single-atom preparation.</p>}},
  author       = {{Grün, D. S. and Giacomelli, L. Bellinato and Tashchilina, A. and Donofrio, R. and Borchers, F. and Bland, T. and Mark, M. J. and Ferlaino, F.}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{Light-assisted collisions in tweezer-trapped lanthanides}},
  url          = {{http://dx.doi.org/10.1103/rkn3-8rc9}},
  doi          = {{10.1103/rkn3-8rc9}},
  volume       = {{8}},
  year         = {{2026}},
}