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The European Physical Journal D

, Volume 65, Issue 1–2, pp 223–242 | Cite as

Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atoms

  • A. RidingerEmail author
  • S. Chaudhuri
  • T. Salez
  • U. Eismann
  • D. R. Fernandes
  • K. Magalhães
  • D. Wilkowski
  • C. Salomon
  • F. Chevy
Regular Article Cooling and trapping methods

Abstract

We present the design, implementation and characterization of a dual-species magneto-optical trap (MOT) for fermionic 6Li and 40K atoms with large atom numbers. The MOT simultaneously contains 5.2 × 1096Li-atoms and 8.0 × 10940K-atoms, which are continuously loaded by a Zeeman slower for 6Li and a 2D-MOT for 40K. The atom sources induce capture rates of 1.2 × 1096Li-atoms/s and 1.4 × 10940K-atoms/s. Trap losses due to light-induced interspecies collisions of ∼65% were observed and could be minimized to ∼10% by using low magnetic field gradients and low light powers in the repumping light of both atomic species. The described system represents the starting point for the production of a large-atom number quantum degenerate Fermi-Fermi mixture.

Keywords

Atom Number Capture Rate Atomic Beam Imaging Beam Excited State Population 

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References

  1. 1.
    Proceedings of the International School of Physics Enrico Fermi on Ultracold Fermi Gases, edited by M. Inguscio, W. Ketterle, C. Salomon (Societa Italiana di Fisica, Bologna, Italy, 2006)Google Scholar
  2. 2.
    S. Giorgini, L.P. Pitaevskii, S. Stringari, Rev. Mod. Phys. 80, 1215 (2008)ADSCrossRefGoogle Scholar
  3. 3.
    R.P. Feynman, Int. J. Theor. Phys. 21, 467 (1982)CrossRefGoogle Scholar
  4. 4.
    A.F. Ho, M.A. Cazalilla, T. Giamarchi, Phys. Rev. A 79, 033620 (2009)ADSCrossRefGoogle Scholar
  5. 5.
    D.S. Petrov, G.E. Astrakharchik, D.J. Papoular, C. Salomon, G.V. Shlyapnikov, Phys. Rev. Lett. 99, 130407 (2007)ADSCrossRefGoogle Scholar
  6. 6.
    M.M. Forbes, E. Gubankova, W.V. Liu, F. Wilczek, Phys. Rev. Lett. 94, 017001 (2005)ADSCrossRefGoogle Scholar
  7. 7.
    J. Levinsen, T.G. Tiecke, J.T.M. Walraven, D.S. Petrov, Phys. Rev. Lett. 103, 153202 (2009)ADSCrossRefGoogle Scholar
  8. 8.
    J. Deiglmayr, A. Grochola, M. Repp, K. Mörtlbauer, C. Glück, J. Lange, O. Dulieu, R. Wester, M. Weidemüller, Phys. Rev. Lett. 101, 133004 (2008)ADSCrossRefGoogle Scholar
  9. 9.
    K.-K. Ni, S. Ospelkaus, M.H.G. de Miranda, A. Péer, B. Neyenhuis, J.J. Zirbel, S. Kotochigova, P.S. Julienne, D.S. Jin, J. Ye, to be publishedGoogle Scholar
  10. 10.
    M. Aymar, O. Dulieu, J. Chem. Phys. 122, 204302 (2005)ADSCrossRefGoogle Scholar
  11. 11.
    T.G. Tiecke, M.R. Goosen, A. Ludewig, S.D. Gensemer, S. Kraft, S.J.J.M.F. Kokkelmans, J.T.M. Walraven, Phys. Rev. Lett. 104, 053202 (2010)ADSCrossRefGoogle Scholar
  12. 12.
    A. Ridinger, S. Chaudhuri, T. Salez, N. Bouloufa, L. Pruvost, O. Dulieu, F. Chevy, C. Salomon, to be publishedGoogle Scholar
  13. 13.
    M. Taglieber, A.-C. Voigt, F. Henkel, S. Fray, T.W. Hänsch, K. Dieckmann, Phys. Rev. A 73, 011402 (2006)ADSCrossRefGoogle Scholar
  14. 14.
    F.M. Spiegelhalder, A. Trenkwalder, D. Naik, G. Kerner, E. Wille, G. Hendl, F. Schreck, R. Grimm, Phys. Rev. A 81, 043637 (2010)ADSCrossRefGoogle Scholar
  15. 15.
    T. Tiecke, Ph.D. thesis, University of Amsterdam, 2009Google Scholar
  16. 16.
    M. Greiner, I. Bloch, T.W. Hänsch, T. Esslinger, Phys. Rev. A 63, 031401 (2001)ADSCrossRefGoogle Scholar
  17. 17.
    U. Eismann, F. Gerbier, C. Canalias, G. Trénec, J. Vigué, F. Chevy, C. Salomon, to be publishedGoogle Scholar
  18. 18.
    K.A. Yakimovich, A.G. Mozgovoi, High Temp. 38, 657 (2000)CrossRefGoogle Scholar
  19. 19.
    G. Ferrari, M.-O. Mewes, F. Schreck, C. Salomon, Opt. Lett. 24, 151 (1999)ADSCrossRefGoogle Scholar
  20. 20.
    M.-O. Mewes, G. Ferrari, F. Schreck, A. Sinatra, C. Salomon, Phys. Rev. A 61, 011403 (1999)ADSCrossRefGoogle Scholar
  21. 21.
    Z. Hadzibabic, S. Gupta, C.A. Stan, C.H. Schunck, M.W. Zwierlein, K. Dieckmann, W. Ketterle, Phys. Rev. Lett. 91, 160401 (2003)ADSCrossRefGoogle Scholar
  22. 22.
    T.G. Tiecke, S.D. Gensemer, A. Ludewig, J.T.M. Walraven, Phys. Rev. A 80, 013409 (2009)ADSCrossRefGoogle Scholar
  23. 23.
    W.D. Phillips, H. Metcalf, Phys. Rev. Lett. 48, 596 (1982)ADSCrossRefGoogle Scholar
  24. 24.
    H.J. Metcalf, P. van der Straten, Laser cooling and trapping (Springer, Berlin, 1999)Google Scholar
  25. 25.
    A. Joffe, W. Ketterle, A. Martin, D.E. Pritchard, J. Opt. Soc. Am. B 10, 2257 (1993)ADSCrossRefGoogle Scholar
  26. 26.
    N.F. Ramsey, Molecular Beams (Oxford University Press, Oxford, 1986)Google Scholar
  27. 27.
    C.B. Alcock, V.P. Itkin, M.K. Horrigan, Can. Metall. Quart. 23, 309 (1984)CrossRefGoogle Scholar
  28. 28.
    K. Dieckmann, R.J.C. Spreeuw, M. Weidemüller, J.T.M. Walraven, Phys. Rev. A 58, 3891 (1998)ADSCrossRefGoogle Scholar
  29. 29.
    J. Schoser, A. Batär, R. Löw, V. Schweikhard, A. Grabowski, Yu.B. Ovchinnikov, T. Pfau, Phys. Rev. A 66, 023410 (2002)ADSCrossRefGoogle Scholar
  30. 30.
    J. Catani, P. Maioli, L. De Sarlo, F. Minardi, M. Inguscio, Phys. Rev. A 73, 033415 (2006)ADSCrossRefGoogle Scholar
  31. 31.
    S. Chaudhuri, S. Roy, C.S. Unnikrishnan, Phys. Rev. A 74, 023406 (2006)ADSCrossRefGoogle Scholar
  32. 32.
    A.M. Steane, M. Chowdhury, C.J. Foot, J. Opt. Soc. Am. B 9, 2142 (1992)ADSCrossRefGoogle Scholar
  33. 33.
    A. Derevianko, W.R. Johnson, M.S. Safronova, J.F. Babb, Phys. Rev. Lett. 82, 3589 (2002)ADSCrossRefGoogle Scholar
  34. 34.
    M.S. Santos, P. Nussenzveig, L.G. Marcassa, K. Helmerson, J. Flemming, S.C. Zilio, V.S. Bagnato, Phys. Rev. A 52, R4340 (1995)ADSCrossRefGoogle Scholar
  35. 35.
    U. Schlöder, H. Engler, U. Schünemann, R. Grimm, M. Weidemüller, Eur. Phys. J. D 7, 331 (1999)ADSCrossRefGoogle Scholar
  36. 36.
    G.D. Telles, W. Garcia, L.G. Marcassa, V.S. Bagnato, D. Ciampini, M. Fazzi, J.H. Müller, D. Wilkowski, E. Arimondo, Phys. Rev. A 63, 033406 (2001)ADSCrossRefGoogle Scholar
  37. 37.
    J. Goldwin, S.B. Papp, B. DeMarco, D.S. Jin, Phys. Rev. A 65, 021402 (2002)ADSCrossRefGoogle Scholar
  38. 38.
    V. Dribinski, A. Ossadtchi, V.A. Mandelshtam, H. Reisler, Rev. Sci. Instrum. 73, 2634 (2002)ADSCrossRefGoogle Scholar
  39. 39.
    M. Weidemüller, C. Zimmermann, Interactions in Ultracold Gases (Wiley-VCH, Weinheim, 2003)Google Scholar
  40. 40.
    B. Bussery, Y. Achkar, M. Aubert-Frécon, Chem. Phys. 116, 319 (1987)CrossRefGoogle Scholar
  41. 41.
    M. Marinescu, H.R. Sadeghpour, Phys. Rev. A 59, 390 (1999)ADSCrossRefGoogle Scholar

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • A. Ridinger
    • 1
    Email author
  • S. Chaudhuri
    • 1
  • T. Salez
    • 1
  • U. Eismann
    • 1
  • D. R. Fernandes
    • 1
  • K. Magalhães
    • 2
  • D. Wilkowski
    • 3
    • 4
  • C. Salomon
    • 1
  • F. Chevy
    • 1
  1. 1.Laboratoire Kastler Brossel, École Normale Supérieure, CNRSUniversité Pierre et Marie-CurieParis Cedex 05France
  2. 2.Instituto de Física de São CarlosUniversidade de São PauloSão Carlos-SPBrazil
  3. 3.Centre for Quantum TechnologiesNational University of SingaporeSingaporeSingapore
  4. 4.Institut Non Linéaire de NiceUniversité de Nice Sophia-Antipolis, CNRSValbonneFrance

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