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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 2 — Jan. 18, 2010
  • pp: 1649–1656

Transport of Bose-Einstein condensate in QUIC trap and separation of trapping spin states

Dezhi Xiong, Pengjun Wang, Zhengkun Fu, and Jing Zhang  »View Author Affiliations

Optics Express, Vol. 18, Issue 2, pp. 1649-1656 (2010)

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We have studied the locomotion track of 87Rb Bose-Einstein condensate during decompressing the trap into the center of the glass cell in a quadrupole-Ioffe configuration trap. In order to change the position of the BEC, the current in the quadrupole coils is reduced while the current in the Ioffe coil keeps constant. Because of the strongly reduced trap frequencies of the moved trap, the BEC considerably sags down due to the gravity. Thus an inflexion point exists in the process of moving BEC. When rubidium atoms go over the inflexion point, they cannot keep in balance under the gravity and the force provided by a magnetic field, and flow downward and towards Ioffe coil. By utilizing this effect, the trapped atoms with the spin state |F = 2, mF = 1⋩, which are left over in the BEC, can be separated from the BEC of |F = 2, mF = 2⋩ state.

© 2010 Optical Society of America

OCIS Codes
(020.2930) Atomic and molecular physics : Hyperfine structure
(020.1475) Atomic and molecular physics : Bose-Einstein condensates

ToC Category:
Atomic and Molecular Physics

Original Manuscript: November 6, 2009
Revised Manuscript: December 30, 2009
Manuscript Accepted: January 7, 2010
Published: January 14, 2010

Dezhi Xiong, Pengjun Wang, Zhengkun Fu, and Jing Zhang, "Transport of Bose-Einstein condensate in QUIC trap and separation of trapping spin states," Opt. Express 18, 1649-1656 (2010)

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  1. Y. Miroshnychenko, D. Schrader, S. Kuhr,W. Alt, I. Dotsenko, M. Khudaverdyan, A. Rauschenbeutel, and D. Meschede, "Continued imaging of the transport of a single neutral atom," Opt. Express 11, 3498-3502 (2003). [CrossRef] [PubMed]
  2. W. Wohlleben, F. Chevy, K. Madison, and J. Dalibard, "An atom faucet," Eur. Phys. J. D 15, 237-244 (2001). [CrossRef]
  3. Z. T. Lu, K. L. Corwin, M. J. Renn, M. H. Anderson, E. A. Cornell, and C. E. Wieman, "Low-velocity intense source of stoms from a magneto-optical trap," Phys. Rev. Lett. 77, 3331-3334 (1996). [CrossRef] [PubMed]
  4. J. Arlt, O . Marago, S .Webster, S . Hopkins, and C. J . Foot, "A pyramidal magneto-optical trap as a source of slow atoms," Opt. Commun. 157, 303-309 (1998). [CrossRef]
  5. A. B. Mundt, A. Kreuter, C. Becher, D. Leibfried, J. Eschner, F. Schmidt-Kaler, and R. Blatt, "Coupling a single atomic quantum bit to a high finesse optical cavity," Phys. Rev. Lett. 89, 103001 (2002). [CrossRef] [PubMed]
  6. L. Fallani, C. Fort, J. E. Lye, and M. Inguscio, "Bose-Einstein condensate in an optical lattice with tunable spacing: transport and static properties," Opt. Express 13, 4303-4313 (2005). [CrossRef] [PubMed]
  7. T. Schumm, S. Hofferberth, L. M. Andersson, S. Wildermuth, S. Groth, I. Bar-Joseph, J. Schmiedmayer, and P. Kruger, "Matter-wave interferometry in a double well on an atom chip," Nat. Phys. 1, 57-62 (2005). [CrossRef]
  8. T. L. Gustavson, A. P. Chikkatur, A. E. Leanhardt, A. Gorlitz, S. Gupta, D. E. Pritchard, and W. Ketterle, "Transport of Bose-Einstein condensates with optical tweezers," Phys. Rev. Lett. 88, 020401 (2002) [CrossRef] [PubMed]
  9. S. Schmid, G. Thalhammer, K. Winkler, F. Lang, and J. H. Denschlag, "Long distance transport of ultracold atoms using a 1D optical lattice," New J. Phys. 8, 159 (2006) [CrossRef]
  10. R. Folman, P. Kruger, J. Schmiedmayer, J. Denschlag, and C. Henkel, "Microscopic atom optics: from wires to an atom chip," Adv. At. Mol. Opt. Phys. 48, 263-356 (2002)
  11. H. Ott, J. Fortagh, G. Schlotterbeck, A. Grossmann, and C. Zimmermann, "Bose-Einstein condensation in a surface microtrap," Phys. Rev. Lett. 87, 230401 (2001) [CrossRef] [PubMed]
  12. C. Klempt, T. Henninger, O. Topic, J. Will, St. Falke, W. Ertmer, and J. Arlt, "Transport of a quantum degenerate heteronuclear Bose-Fermi mixture in a harmonic trap," Eur. Phys. J. D 48,121-126 (2008). [CrossRef]
  13. T. Esslinger, I. Bloch, and T. W. Hansch, "Magnetostatic trapping fields for natural atoms," Phys. Rev. A 58, R2664-R2267 (1998). [CrossRef]
  14. J. Weiner, V. S. Bagnato, S. Zilio, and P. S. Julienne, "Experiments and theory in cold and ultracold collisions," Rev. Mod. Phys. 71, 1-85 (1999). [CrossRef]
  15. T. P. Meyrath, "Experiments with Bose-Einstein Condensation in an Optical Box" PhD Thesis (USA:The University of Texas) (2005)
  16. M.-S. Chang, C. D. Hamley, M. D. Barrett, J. A. Sauer, K. M. Fortier, W. Zhang, L. You, and M. S. Chapman, "Observation of Spinor Dynamics in optically trapped 87Rb Bose-Einstein condensates," Phys. Rev. Lett. 92, 140403 (2004) [CrossRef] [PubMed]
  17. X. Ma, S. Chen, F. Yang, L. Xia, X. Zhou, Y. Wang, and X. Chen, "Observation of F = 2 spinor Bose-Einstein condensation in a magnetic field," Chin. Phys. Lett. 22, 1106-1109 (2005) [CrossRef]
  18. D. Wei, D. Xiong, H. Chen, P. Wang, L. Guo, and J. Zhang, "Simultaneous Magneto-optical Trpping of Fermionic 40K and Bosonic 87Rb atoms," Chin. Phys. Lett. 24, 1541-1544 (2007). [CrossRef]
  19. D. Xiong, H. Chen, P. Wang, X. Yu, F. Gao, and J. Zhang, "Quantum Degenerate FermiCBose mixtures of 40K and 87Rb atoms in a Quadrupole-Ioffe configuration trap," Chin. Phys. Lett. 23, 843-846 (2008).
  20. T. Bergeman, G. Erez, and H. J. Metcalf, "Magnetostatic trapping fields for neutral atoms," Phys. Rev. A 35, 1535-1546 (1987). [CrossRef] [PubMed]
  21. D. Xiong, P. Wang, Z. Fu, and J. Zhang, "Evaporative cooling rubidium atoms with microwave radiation," Chin. Opt. Lett.in press.
  22. M. Hass, V. Leung, D. Frese, D. Haubrich, S. John, C. Weber, A. Rauschenbeutel, and A. Meschede, "Speciesselective microwave cooling of a mixture of rubidium and caesium atoms," New J. Phys. 9, 147 (2007). [CrossRef]
  23. C. Silber, S. Gunther, C. Marzok, B. Deh, Ph. W. ourteille, and C. Zimmermann, "Quantum-degenerate mixture of fermionic lithium and bosonic rubidium gases," Phys. Rev. Lett. 95, 170408 (2005). [CrossRef] [PubMed]

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