Strong Anderson localization in cold atom quantum quenches

Preprint English OPEN
Micklitz, T. ; Müller, C. A. ; Altland, A. (2013)

Signatures of strong Anderson localization in the momentum distribution of a cold atom cloud after a quantum quench are studied. We consider a quasi one-dimensional cloud initially prepared in a well defined momentum state, and expanding for some time in a disorder speckle potential. Anderson localization leads to a formation of a coherence peak in the \emph{forward} scattering direction (as opposed to the common weak localization backscattering peak). We present a microscopic, and fully time resolved description of the phenomenon, covering the entire diffusion--to--localization crossover. Our results should be observable by present day technology.
  • References (16)
    16 references, page 1 of 2

    [1] T. Kinoshita, T. Wenger, and D. S. Weiss, Nature 440, 900-903 (2006).

    [2] J. Chabe, et al., Phys. Rev. Lett. 101, 255702 (2008).

    [3] N. Cherroret, T. Karpiuk, C. A. Muller, B. Gremaud, and C. Miniatura, Phys. Rev. A 85, 011604(R) (2012).

    [4] T. Karpiuk, N. Cherroret, K. L. Lee, B. Gremaud, C. A. Muller, and C. Miniatura, Phys. Rev. Lett. 109, 190601 (2012).

    [5] F. Jendrzejewski, K. Muller, J. Richard, A. Date, T. Plisson, P. Bouyer, A. Aspect, V. Josse, Phys. Rev. Lett. 109, 195302 (2012).

    [6] G. Laberie, T. Karpiuk, J.-F. Scha , B. Gremaud, C. Miniatura, D. Delande, Eur. Phys. Lett. 100, 66001 (2012).

    [7] K. B. Efetov, Supersymmetry in Disorder and Chaos (Cambridge U. Press, 1999);

    [8] K. B. Efetov and A. Larkin, Sov. Phys. JETP 58, 444 (1983).

    [9] J. Dalibard, F. Gerbier, G. Juzeliunas, P. Ohberg, Rev. Mod. Phys. 83, 1523 (2011). In our setting, T will be broken by small elds corresponding to one ux quantum per area O(L? ), where is the localization length and L? the transverse width of the wire.

    [10] T. Plisson, T. Bourdel, C. A. Muller, Eur. J. Phys. ST 217, 79 (2013).

  • Metrics
    No metrics available
Share - Bookmark