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dc.creatorMaier, T
dc.creatorKadau, H
dc.creatorSchmitt, M
dc.creatorWenzel, M
dc.creatorFerrier-Barbut, I
dc.creatorPfau, T
dc.creatorFrisch, A
dc.creatorBaier, S
dc.creatorAikawa, K
dc.creatorChomaz, L
dc.creatorMark, MJ
dc.creatorFerlaino, F
dc.creatorMakrides, C
dc.creatorTiesinga, E
dc.creatorPetrov, A
dc.creatorKotochigova, S
dc.date.accessioned2021-02-03T18:24:08Z
dc.date.available2021-02-03T18:24:08Z
dc.date.issued2015-01-01
dc.identifier.issn2160-3308
dc.identifier.issn2160-3308
dc.identifier.doihttp://dx.doi.org/10.34944/dspace/5820
dc.identifier.otherCW4YP (isidoc)
dc.identifier.other29876143 (pubmed)
dc.identifier.urihttp://hdl.handle.net/20.500.12613/5838
dc.description.abstractWe show that for ultracold magnetic lanthanide atoms chaotic scattering emerges due to a combination of anisotropic interaction potentials and Zeeman coupling under an external magnetic field. This scattering is studied in a collaborative experimental and theoretical effort for both dysprosium and erbium.We present extensive atom-loss measurements of their dense magnetic Feshbach-resonance spectra, analyze their statistical properties, and compare to predictions from a random-matrix-theory-inspired model. Furthermore, theoretical coupled-channels simulations of the anisotropic molecular Hamiltonian at zero magnetic field show that weakly bound, near threshold diatomic levels form overlapping, uncoupled chaotic series that when combined are randomly distributed. The Zeeman interaction shifts and couples these levels, leading to a Feshbach spectrum of zero-energy bound states with nearest-neighbor spacings that changes from randomly to chaotically distributed for increasing magnetic field. Finally, we show that the extreme temperature sensitivity of a small, but sizable fraction of the resonances in the Dy and Er atom-loss spectra is due to resonant nonzero partial-wave collisions. Our threshold analysis for these resonances indicates a large collision-energy dependence of the three-body recombination rate.
dc.format.extent041029-
dc.language.isoen
dc.relation.haspartPhysical Review X
dc.relation.isreferencedbyAmerican Physical Society (APS)
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectAtomic and Molecular Physics
dc.subjectQuantum Physics
dc.titleEmergence of chaotic scattering in ultracold Er and Dy
dc.typeArticle
dc.type.genreJournal Article
dc.relation.doi10.1103/PhysRevX.5.041029
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
dc.date.updated2021-02-03T18:24:04Z
refterms.dateFOA2021-02-03T18:24:09Z


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