Gutenberg Open Science: Robust polarization gradient cooling of trapped ions

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-10060

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DC Field	Value	Language
dc.contributor.author	Li, Wenbing	-
dc.contributor.author	Wolf, Sebastian	-
dc.contributor.author	Klein, Lukas	-
dc.contributor.author	Budker, Dmitry	-
dc.contributor.author	Düllmann, Christoph E.	-
dc.contributor.author	Schmidt-Kaler, Ferdinand	-
dc.date.accessioned	2024-02-06T15:39:57Z	-
dc.date.available	2024-02-06T15:39:57Z	-
dc.date.issued	2022	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/10078	-
dc.description.abstract	We implement three-dimensional polarization gradient cooling (PGC) of trapped ions. Counter-propagating laser beams near 393 nm impinge in lin ⊥ lin configuration, at a frequency below the S1/2 to P3/2 resonance in 40Ca+. Our measurements demonstrate that cooling with laser beams detuned to lower frequencies from the resonance is robust against an elevated phonon occupation number and works continuously in the crossover from regular Doppler cooling to detunings of tens of linewidths. It is thus robust against heating events and also works well for an initial ion motion far out of the Lamb–Dicke regime. We show that PGC performance strongly depends on residual micromotion (MM) and find PGC working for a MM modulation index β ⩽ 0.1. Still, we find that the spectral impurity of the laser field affects both, cooling rates and cooling limits. Thus, a Fabry–Pérot cavity filter is employed to efficiently suppress amplified spontaneous emission of the diode laser. We demonstrate mean phonon numbers for a single ion of 5.4(4) at a trap frequency of 2π × 285 kHz and 3.3(4) at 2π × 480 kHz, in the axial and radial directions, respectively.	en_GB
dc.language.iso	eng	de
dc.rights	CC BY	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	*
dc.subject.ddc	530 Physik	de_DE
dc.subject.ddc	530 Physics	en_GB
dc.title	Robust polarization gradient cooling of trapped ions	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-10060	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 08 Physik, Mathematik u. Informatik	de
jgu.organisation.department	Helmholtz Institut Mainz	de
jgu.organisation.number	7940	-
jgu.organisation.number	9050	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	New journal of physics	de
jgu.journal.volume	24	de
jgu.journal.issue	4	de
jgu.pages.alternative	043028	de
jgu.publisher.year	2022	-
jgu.publisher.name	IOP	de
jgu.publisher.place	London	de
jgu.publisher.issn	1367-2630	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	530	de
dc.date.updated	2023-10-17T18:59:30Z	-
jgu.publisher.doi	10.1088/1367-2630/ac6233	de
elements.object.id	152655	-
elements.object.labels	trapped ions	-
elements.object.labels	laser cooling	-
elements.object.labels	sub-Doppler cooing	-
elements.object.labels	polarization gradient cooling	-
elements.object.labels	02 Physical Sciences	-
elements.object.labels	Fluids & Plasmas	-
elements.object.labels	51 Physical sciences	-
elements.object.type	journal-article	-
jgu.organisation.ror	https://ror.org/023b0x485	-
jgu.subject.dfg	Naturwissenschaften	de
Appears in collections:	DFG-491381577-G

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