Mott-Hubbard transition of cold atoms in optical lattices

  title={Mott-Hubbard transition of cold atoms in optical lattices},
  author={Wilhelm Zwerger},
  journal={Journal of Optics B-quantum and Semiclassical Optics},
  • W. Zwerger
  • Published 15 November 2002
  • Physics
  • Journal of Optics B-quantum and Semiclassical Optics
We discuss the superfluid (SF) to Mott-insulator transition of cold atoms in optical lattices recently observed by Greiner et al (2002 Nature 415 39). The fundamental properties of both phases and their experimental signatures ar ed iscussed carefully, including the limitations of the standard Gutzwiller approximation. It is shown that in a one-dimensional dilute Bose-gas with a strong transverse confinement (Tonks-gas), even an arbitrary weak optical lattice is able to induce a Mott-like state… 

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