Phase transition of one dimensional bosons with strong disorder

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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.
4 pages 3 embedded eps figures

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Disordered Systems and Neural Networks, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/23284

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0402177
 http://arxiv.org/abs/cond-mat/0402177
 Phys. Rev. Lett. 93, 150402 (2004)
 doi:10.1103/PhysRevLett.93.150402

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arXiv