Phys. Rev. Lett. 102, 085301 (2009) [4 pages]Compression as a Tool to Detect Bose Glass in a Cold Atomic GasReceived 24 October 2008; published 23 February 2009 We suggest that measuring the variation of the radius of an atomic cloud when the harmonic trap confinement is varied makes it possible to monitor the disappearance of the insulating Mott phase of an ultracold atomic gas trapped in a disordered optical lattice. This paves the way for an unambiguous identification of a Bose glass phase in the system. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.085301
DOI:
10.1103/PhysRevLett.102.085301
PACS:
67.85.Hj, 03.75.Kk, 03.75.Lm, 05.30.Jp
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