Advertisement

International Journal of Theoretical Physics

, Volume 53, Issue 3, pp 1078–1083 | Cite as

Quantum Coherence and Spin Squeezing in Bose-Einstein Condensate with Josephson-Like Coupling

  • Gang Chen
  • Song Rao
  • Li-Shu Liu
Article
  • 101 Downloads

Abstract

We consider single-particle coherence and spin squeezing in Bose-Einstein Condensate (BEC) with Josephson-like coupling when the BEC is initially in a coherent spin state. Josephson-like coupling gives vanishing contribution to single-particle coherence and spin squeezing. The stronger squeezing can be achieved by increasing the number of atoms.

Keywords

Spin squeezing Single-particle coherence Josephson-like coupling Bose-Einstein condensate 

References

  1. 1.
    Jin, G.-R., Wook Kim, S.: Phys. Rev. A 76, 043621 (2007) ADSCrossRefGoogle Scholar
  2. 2.
    Kitagawa, M., Ueda, M.: Phys. Rev. A 47, 5138 (1993) ADSCrossRefGoogle Scholar
  3. 3.
    Sørensen, A., Duan, L.M., Cirac, J.I., Zoller, P.: Nature 409, 63 (2001) ADSCrossRefGoogle Scholar
  4. 4.
    Wineland, D.J., Bollinger, J.J., Itano, W.M., Heinzen, D.J.: Phys. Rev. A 50, 67 (1994) ADSCrossRefGoogle Scholar
  5. 5.
    Jin, G.-R., Liu, Y.-C., Liu, W.-M.: New J. Phys. 11, 073049 (2009) ADSCrossRefGoogle Scholar
  6. 6.
    Helmerson, K., You, L.: Phys. Rev. Lett. 87, 170402 (2001) ADSCrossRefGoogle Scholar
  7. 7.
    Yi, S., Pu, H.: Phys. Rev. A 73, 023602 (2006) ADSCrossRefGoogle Scholar
  8. 8.
    Jin, G.-R., Law, C.K.: Phys. Rev. A 78, 063620 (2008) ADSCrossRefGoogle Scholar
  9. 9.
    Widera, A., Trotzky, S., Cheinet, P., Folling, S., Gerbier, F., Bloch, I., Gritsev, V., Lukin, M.D., Demler, E.: Phys. Rev. Lett. 100, 140401 (2008) ADSCrossRefGoogle Scholar
  10. 10.
    Khodorkovsky, Y., Kurizki, G., Vardi, A.: Phys. Rev. Lett. 100, 220403 (2008) ADSCrossRefGoogle Scholar
  11. 11.
    Li, Y., Castin, Y., Sinatra, A.: Phys. Rev. Lett. 100, 210401 (2008) ADSCrossRefGoogle Scholar
  12. 12.
    Wang, X.-G., Pan, S.-H., Yang, G.-Z.: Physica A 274, 484 (1999) ADSCrossRefGoogle Scholar
  13. 13.
    Kuang, L.-M., Zhou, L.: Phys. Rev. A 68, 043606 (2003) ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of PhysicsJiangxi Institute of EducationNanchangPeople’s Republic of China

Personalised recommendations