Phase transition of one dimensional bosons with strong disorder

Details Phase transition of one dimensional bosons with strong disorder Phase transition of one dimensional bosons with strong disorder

2004-02-06

arxiv.org/abs/cond-mat/0402177v2

Phys. Rev. Lett. 93, 150402 (2004)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages 3 embedded eps figures

Scientific paper

10.1103/PhysRevLett.93.150402

We study one dimensional disordered bosons at large commensurate filling. Using a real space renormalization group approach we find a new random fixed point which controls a phase transition from a superfluid to an incompressible Mott-glass. The transition can be tuned by changing the disorder distribution even with vanishing interactions. We derive the properties of the transition, which suggest that it is in the Kosterlitz-Thouless universality class.

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