Measurement of the trapping lifetime close to a cold metallic surface on a cryogenic atom-chip
Autor: | Adrian Lupascu, Gilles Nogues, Michel Brune, Serge Haroche, Andreas Emmert, Jean-Michel Raimond |
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Přispěvatelé: | Laboratoire Kastler Brossel (LKB (Lhomond)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Kastler Brossel (LKB [Collège de France]), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), This work was supported by the Agence Nationale pour la Recherche (ANR), by the Japan Science and Technology Agency (JST), and by the EU under the IP project SCALA. A.L. acknowledges support by an EU Marie Curie fellowship., Superconducting atom-chip project, Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Collège de France (CdF (institution)) |
Rok vydání: | 2009 |
Předmět: |
Surface (mathematics)
Atom chip Atomic Physics (physics.atom-ph) FOS: Physical sciences Trapping 01 natural sciences 7. Clean energy 010305 fluids & plasmas Physics - Atomic Physics Metal superconductor 0103 physical sciences 03.75.Be 37.10.Gh 67.85.-d trapping lifetime Physics::Atomic Physics 010306 general physics ultracold atoms Superconductivity Physics Condensed Matter::Quantum Gases Range (particle radiation) [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] cryogenic temperature magnetic trap Atomic and Molecular Physics and Optics visual_art visual_art.visual_art_medium Johnson-Nyquist noise atom-chip Atomic physics Noise (radio) Loss rate |
Zdroj: | The European Physical Journal D : Atomic, molecular, optical and plasma physics The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2009, 51, pp.173-177. ⟨10.1140/epjd/e2009-00001-5⟩ The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2009, 51, pp.173-177. ⟨10.1140/epjd/e2009-00001-5⟩ |
ISSN: | 1434-6060 1434-6079 |
DOI: | 10.48550/arxiv.0901.4331 |
Popis: | We have measured the trapping lifetime of magnetically trapped atoms in a cryogenic atom-chip experiment. An ultracold atomic cloud is kept at a fixed distance from a thin gold layer deposited on top of a superconducting trapping wire. The lifetime is studied as a function of the distances to the surface and to the wire. Different regimes are observed, where loss rate is determined either by the technical current noise in the wire or the Johnson-Nyquist noise in the metallic gold layer, in good agreement with theoretical predictions. Far from the surface, we observe exceptionally long trapping times for an atom-chip, in the 10-minutes range. Comment: 5 pages |
Databáze: | OpenAIRE |
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