Infinite Randomness Fixed Point of the Superconductor-Metal Quantum Phase Transition
Adrian Del Maestro, Bernd Rosenow, Markus Müller, Subir Sachdev
DOI 10.1103/PhysRevLett.101.035701 · Physical Review Letters
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Abstract
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. [Phys. Rev. Lett. 99, 230601 (2007)] 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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