Show simple item record

dc.contributor.authorNewman, Bonna Kay
dc.contributor.authorBrahms, Nathan
dc.contributor.authorAu, Yat Shan
dc.contributor.authorJohnson, Cort
dc.contributor.authorConnolly, Colin B.
dc.contributor.authorDoyle, John M.
dc.contributor.authorKleppner, Daniel
dc.contributor.authorGreytak, Thomas J.
dc.date.accessioned2011-06-16T17:46:14Z
dc.date.available2011-06-16T17:46:14Z
dc.date.issued2011-01
dc.date.submitted2010-12
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1721.1/64460
dc.description.abstractThe collisional magnetic reorientation rate constant gR is measured for magnetically trapped atomic dysprosium (Dy), an atom with large magnetic dipole moments. Using buffer gas cooling with cold helium, large numbers (>1011) of Dy are loaded into a magnetic trap and the buffer gas is subsequently removed. The decay of the trapped sample is governed by collisional reorientation of the atomic magnetic moments. We find gR=1.9±0.5×10-11 cm3 s-1 at 390 mK. We also measure the magnetic reorientation rate constant of holmium (Ho), another highly magnetic atom, and find gR=5±2×10-12 cm3 s-1 at 690 mK. The Zeeman relaxation rates of these atoms are greater than expected for the magnetic dipole-dipole interaction, suggesting that another mechanism, such as an anisotropic electrostatic interaction, is responsible. Comparison with estimated elastic collision rates suggests that Dy is a poor candidate for evaporative cooling in a magnetic trap.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant No. PHY-0757157)en_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevA.83.012713en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAPSen_US
dc.titleMagnetic relaxation in dysprosium-dysprosium collisionsen_US
dc.typeArticleen_US
dc.identifier.citationNewman, Bonna Kay et al. "Magnetic relaxation in dysprosium-dysprosium collisions." Phys. Rev. A 83, 012713 (2011) [5 pages] © 2011 American Physical Society.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMIT-Harvard Center for Ultracold Atomsen_US
dc.contributor.approverGreytak, Thomas J.
dc.contributor.mitauthorGreytak, Thomas J.
dc.contributor.mitauthorNewman, Bonna Kay
dc.contributor.mitauthorJohnson, Cort
dc.contributor.mitauthorBrahms, Nathan
dc.contributor.mitauthorAu, Yat Shan
dc.contributor.mitauthorConnolly, Colin B.
dc.contributor.mitauthorDoyle, John M.
dc.contributor.mitauthorKleppner, Daniel
dc.relation.journalPhysical Review Aen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsNewman, Bonna; Brahms, Nathan; Au, Yat; Johnson, Cort; Connolly, Colin; Doyle, John; Kleppner, Daniel; Greytak, Thomasen
dc.identifier.orcidhttps://orcid.org/0000-0002-8886-9020
dc.identifier.orcidhttps://orcid.org/0000-0001-9769-2418
mit.licensePUBLISHER_POLICYen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record