Advertisement

Interspecies Thermalisation in an Ultracold Mixture of Cs and Yb

  • Alexander GuttridgeEmail author
Chapter
Part of the Springer Theses book series (Springer Theses)

Abstract

With suitable techniques developed and implemented for the cooling to degeneracy of Yb and Cs independently, we now begin to explore how to combine the two species in a common optical trapping potential. Confinement of the two species in the same trap enables the study of interspecies interactions and allows the evaluation of potential routes to double degeneracy in the mixture.

References

  1. 1.
    Anderlini M, Guéry-Odelin D (2006) Thermalization in mixtures of ultracold gases. Phys Rev A 73(3):032,706.  https://doi.org/10.1103/PhysRevA.73.032706
  2. 2.
    Anderlini M, Ciampini D, Cossart D, Courtade E, Cristiani M, Sias C, Morsch O, Arimondo E (2005) Model for collisions in ultracold-atom mixtures. Phys Rev A 72(033):408.  https://doi.org/10.1103/PhysRevA.72.033408CrossRefGoogle Scholar
  3. 3.
    Brue DA, Hutson JM (2013) Prospects of forming ultracold molecules in \(^{2} \Sigma \) states by magnetoassociation of alkali-metal atoms with Yb. Phys Rev A 87(5):052,709.  https://doi.org/10.1103/physreva.87.052709
  4. 4.
    De Laeter JR, Böhlke JK, De Bièvre P, Hidaka H, Peiser HS, Rosman KJR, Taylor PDP (2009) Atomic weights of the elements. Review 2000 (IUPAC technical report). Pure Appl Chem 75:683–800.  https://doi.org/10.1351/pac200375060683CrossRefGoogle Scholar
  5. 5.
    Frye MD, Hutson JM (2014) Collision cross sections for the thermalization of cold gases. Phys Rev A 89(052):705.  https://doi.org/10.1103/PhysRevA.89.052705CrossRefGoogle Scholar
  6. 6.
    Gao B (2000) Zero-energy bound or quasibound states and their implications for diatomic systems with an asymptotic van der Waals interaction. Phys Rev A 62(5):050,702.  https://doi.org/10.1103/PhysRevA.62.050702
  7. 7.
    Gribakin GF, Flambaum VV (1993) Calculation of the scattering length in atomic collisions using the semiclassical approximation. Phys Rev A 48(1):546–553. https://doi.org/10.1103/PhysRevA.48.546ADSCrossRefGoogle Scholar
  8. 8.
    Guttridge A, Hopkins SA, Kemp SL, Boddy D, Freytag R, Jones MPA, Tarbutt MR, Hinds EA, Cornish SL (2016) Direct loading of a large Yb MOT on the \({}^{1}{S}_{0} \rightarrow {}^{3}{P}_{1}\) transition. J Phys B: At, Mol Opt Phys 49(14):145,006.  https://doi.org/10.1088/0953-4075/49/14/145006ADSCrossRefGoogle Scholar
  9. 9.
    Guttridge A, Hopkins SA, Kemp SL, Frye MD, Hutson JM, Cornish SL (2017) Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap. Phys Rev A 96(012):704.  https://doi.org/10.1103/PhysRevA.96.012704CrossRefGoogle Scholar
  10. 10.
    Hughes IG, Hase TPA (2010) Measurements and their uncertainties. Oxford University PressGoogle Scholar
  11. 11.
    Hutson JM, Green S (1982) SBE computer program. Distributed by Collaborative Computational Project No. 6 of the UK Engineering and Physical Sciences Research CouncilGoogle Scholar
  12. 12.
    Hutson JM, Green S (2011) MOLSCAT computer programGoogle Scholar
  13. 13.
    Ivanov VV, Gupta S (2011) Laser-driven Sisyphus cooling in an optical dipole trap. Phys Rev A 84(6):063,417.  https://doi.org/10.1103/PhysRevA.84.063417
  14. 14.
    Ketterle W, Druten NV (1996) Evaporative cooling of trapped atoms. Adv At Mol Opt Phy 37:181–236.  https://doi.org/10.1016/S1049-250X(08)60101-9ADSCrossRefGoogle Scholar
  15. 15.
    Kitagawa M, Enomoto K, Kasa K, Takahashi Y, Ciuryło R, Naidon P, Julienne PS (2008) Two-color photoassociation spectroscopy of ytterbium atoms and the precise determinations of \(s\)-wave scattering lengths. Phys Rev A 77(1):012,719.  https://doi.org/10.1103/physreva.77.012719
  16. 16.
    Köppinger MP, McCarron DJ, Jenkin DL, Molony PK, Cho HW, Cornish SL, Le Sueur CR, Blackley CL, Hutson JM (2014) Production of optically trapped \(^{87}\)RbCs Feshbach molecules. Phys Rev A 89(3):033,604.  https://doi.org/10.1103/PhysRevA.89.033604
  17. 17.
    Kraemer T, Mark M, Waldburger P, Danzl JG, Chin C, Engeser B, Lange AD, Pilch K, Jaakkola A, Nägerl HC, Grimm R (2006) Evidence for Efimov quantum states in an ultracold gas of caesium atoms. Nature 440(7082):315–318.  https://doi.org/10.1038/nature04626ADSCrossRefGoogle Scholar
  18. 18.
    Lauber T, Küber J, Wille O, Birkl G (2011) Optimized Bose-Einstein-condensate production in a dipole trap based on a \(1070\)-nm multifrequency laser: influence of enhanced two-body loss on the evaporation process. Phys Rev A 84(4):043,641.  https://doi.org/10.1103/physreva.84.043641
  19. 19.
    Luiten OJ, Reynolds MW, Walraven JTM (1996) Kinetic theory of the evaporative cooling of a trapped gas. Phys Rev A 53:381–389.  https://doi.org/10.1103/PhysRevA.53.381ADSCrossRefGoogle Scholar
  20. 20.
    McCarron DJ, Cho HW, Jenkin DL, Köppinger MP, Cornish SL (2011) Dual-species Bose-Einstein condensate of \(^{87}\)Rb and \(^{133}\)Cs. Phys Rev A 84(1):011,603.  https://doi.org/10.1103/PhysRevA.84.011603
  21. 21.
    Menegatti CR, Marangoni BS, Bouloufa-Maafa N, Dulieu O, Marcassa LG (2013) Trap loss in a rubidium crossed dipole trap by short-range photoassociation. Phys Rev A 87(5):053,404.  https://doi.org/10.1103/physreva.87.053404
  22. 22.
    Mosk A, Kraft S, Mudrich M, Singer K, Wohlleben W, Grimm R, Weidemüller M (2001) Mixture of ultracold lithium and cesium atoms in an optical dipole trap. Appl Phys B 73(8):791–799.  https://doi.org/10.1007/s003400100743ADSCrossRefGoogle Scholar
  23. 23.
    Mudrich M, Kraft S, Singer K, Grimm R, Mosk A, Weidemüller M (2002) Sympathetic cooling with two atomic species in an optical trap. Phys Rev Lett 88(253):001.  https://doi.org/10.1103/PhysRevLett.88.253001CrossRefGoogle Scholar
  24. 24.
    O’Hara KM, Gehm ME, Granade SR, Thomas JE (2001) Scaling laws for evaporative cooling in time-dependent optical traps. Phys Rev A 64(051):403.  https://doi.org/10.1103/PhysRevA.64.051403CrossRefGoogle Scholar
  25. 25.
    Riboli F, Modugno M (2002) Topology of the ground state of two interacting Bose-Einstein condensates. Phys Rev A 65(6):063,614.  https://doi.org/10.1103/PhysRevA.65.063614
  26. 26.
    Sofikitis D, Stern G, Kime L, Dimova E, Fioretti A, Comparat D, Pillet P (2011) Loading a dipole trap from an atomic reservoir. Eur Phys J D 61(2):437–442.  https://doi.org/10.1140/epjd/e2010-10261-5ADSCrossRefGoogle Scholar
  27. 27.
    Takekoshi T, Debatin M, Rameshan R, Ferlaino F, Grimm R, Nägerl HC, Le Sueur CR, Hutson JM, Julienne PS, Kotochigova S, Tiemann E (2012) Towards the production of ultracold ground-state RbCs molecules: Feshbach resonances, weakly bound states, and the coupled-channel model. Phys Rev A 85(3):032,506.  https://doi.org/10.1103/PhysRevA.85.032506
  28. 28.
    Tassy S, Nemitz N, Baumer F, Höhl C, Batär A, Görlitz A (2010) Sympathetic cooling in a mixture of diamagnetic and paramagnetic atoms. J Phys B: At, Mol Opt Phys 43(20):205,309.  https://doi.org/10.1088/0953-4075/43/20/205309ADSCrossRefGoogle Scholar
  29. 29.
    Weber T, Herbig J, Mark M, Nägerl HC, Grimm R (2003) Three-body recombination at large scattering lengths in an ultracold atomic gas. Phys Rev Lett 91(123):201.  https://doi.org/10.1103/PhysRevLett.91.123201CrossRefGoogle Scholar
  30. 30.
    Yamashita K, Hanasaki K, Ando A, Takahama M, Kinoshita T (2017) All-optical production of a large Bose-Einstein condensate in a double compressible crossed dipole trap. Phys Rev A 95(1):013,609.  https://doi.org/10.1103/physreva.95.013609

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of PhysicsDurham UniversityDurhamUK

Personalised recommendations