Infinite randomness fixed point of the superconductor-metal quantum phase transition

Details Infinite randomness fixed point of the superconductor-metal quantum phase transition Infinite randomness fixed point of the superconductor-metal quantum phase transition

2008-02-27

arxiv.org/abs/0802.3900v1

Physical Review Letters 101, 035701 (2008)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4+ pages, 3 figures

Scientific paper

10.1103/PhysRevLett.101.035701

We examine the influence of quenched disorder on the superconductor-metal transition, as described by a theory of overdamped Cooper pairs which repel each other. The self-consistent pairing eigenmodes of a quasi-one dimensional wire are determined numerically. Our results support the recent proposal by Hoyos et al. (arXiv:0705.1865) that the transition is characterized by the same strong disorder fixed point describing the onset of ferromagnetism in the random quantum Ising chain in a transverse field.

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