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arXiv · 1205.2105

Phase transition of interacting disordered bosons in one dimension

Zoran Ristivojevic·Aleksandra Petkovic·Pierre Le Doussal·Thierry Giamarchi
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Abstract

Interacting bosons generically form a superfluid state. In the presence of disorder it can get converted into a compressible Bose glass state. Here we study such transition in one dimension at moderate interaction using bosonization and renormalization group techniques. We derive the two-loop scaling equations and discuss the phase diagram. We find that the correlation functions at the transition are characterized by universal exponents in a finite region around the fixed point.

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Zoran Ristivojevic, Aleksandra Petkovic, Pierre Le Doussal, Thierry Giamarchi. 2012-05-09. Phase transition of interacting disordered bosons in one dimension. https://doi.org/10.1103/physrevlett.109.026402

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