Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 063062 |
| Fachzeitschrift | New journal of physics |
| Jahrgang | 23 |
| Ausgabenummer | 6 |
| Publikationsstatus | Veröffentlicht - 21 Juni 2021 |
Abstract
Magneto-optical trapping (MOT) is a key technique on the route towards ultracold molecular ensembles. However, the realization and optimization of magneto-optical traps with their wide parameter space is particularly difficult. Here, we present a very general method for the optimization of molecular magneto-optical trap operation by means of Bayesian optimization. As an example for a possible application, we consider the optimization of a calcium fluoride MOT for maximum capture velocity. We find that both the X 2Σ+ to A 2Π1/2 and the X 2Σ+ to B 2Σ+ transition to allow for capture velocities with 24 m s-1 and 23 m s-1 respectively at a total laser power of 200 mW. In our simulation, the optimized capture velocity depends logarithmically on the beam power within the simulated power range of 25 to 400 mW. Applied to heavy molecules such as BaH, BaF, YbF and YbOH with their low capture velocity MOTs it might offer a route to far more robust MOT.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: New journal of physics, Jahrgang 23, Nr. 6, 063062, 21.06.2021.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization
AU - Xu, S.
AU - Kaebert, P.
AU - Stepanova, M.
AU - Poll, T.
AU - Siercke, M.
AU - Ospelkaus, S.
PY - 2021/6/21
Y1 - 2021/6/21
N2 - Magneto-optical trapping (MOT) is a key technique on the route towards ultracold molecular ensembles. However, the realization and optimization of magneto-optical traps with their wide parameter space is particularly difficult. Here, we present a very general method for the optimization of molecular magneto-optical trap operation by means of Bayesian optimization. As an example for a possible application, we consider the optimization of a calcium fluoride MOT for maximum capture velocity. We find that both the X 2Σ+ to A 2Π1/2 and the X 2Σ+ to B 2Σ+ transition to allow for capture velocities with 24 m s-1 and 23 m s-1 respectively at a total laser power of 200 mW. In our simulation, the optimized capture velocity depends logarithmically on the beam power within the simulated power range of 25 to 400 mW. Applied to heavy molecules such as BaH, BaF, YbF and YbOH with their low capture velocity MOTs it might offer a route to far more robust MOT.
AB - Magneto-optical trapping (MOT) is a key technique on the route towards ultracold molecular ensembles. However, the realization and optimization of magneto-optical traps with their wide parameter space is particularly difficult. Here, we present a very general method for the optimization of molecular magneto-optical trap operation by means of Bayesian optimization. As an example for a possible application, we consider the optimization of a calcium fluoride MOT for maximum capture velocity. We find that both the X 2Σ+ to A 2Π1/2 and the X 2Σ+ to B 2Σ+ transition to allow for capture velocities with 24 m s-1 and 23 m s-1 respectively at a total laser power of 200 mW. In our simulation, the optimized capture velocity depends logarithmically on the beam power within the simulated power range of 25 to 400 mW. Applied to heavy molecules such as BaH, BaF, YbF and YbOH with their low capture velocity MOTs it might offer a route to far more robust MOT.
KW - Bayesian optimization
KW - cold molecules
KW - laser cooling
KW - magneto-optical trap
UR - http://www.scopus.com/inward/record.url?scp=85109191715&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/ac06e6
DO - 10.1088/1367-2630/ac06e6
M3 - Article
AN - SCOPUS:85109191715
VL - 23
JO - New journal of physics
JF - New journal of physics
SN - 1367-2630
IS - 6
M1 - 063062
ER -