Condensed Matter Theory

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Excitons in one-dimensional Mott insulators

(2001)

Authors:

FHL Essler, F Gebhard, E Jeckelmann
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Tunneling between Luttinger liquids

Physical Review B American Physical Society (APS) 63:11 (2001) 115102

Authors:

Paul Fendley, Chetan Nayak
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Many-body interactions and correlations in coarse-grained descriptions of polymer solutions

(2001)

Authors:

PG Bolhuis, AA Louis, JP Hansen
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Integrable sigma models with θ=π

Physical Review B American Physical Society (APS) 63:10 (2001) 104429
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Spin quantum Hall transition in disordered superconductors

PHYSICA E 9:3 (2001) 352-355

Authors:

V Kagalovsky, B Horovitz, Y Avishai, JT Chalker

Abstract:

We study a delocalization transition for non-interacting quasiparticles moving in two dimensions, which belongs to a new symmetry class. This symmetry class can be realized in a dirty, gapless superconductor in which time-reversal symmetry for orbital motion is broken, but spin rotation symmetry is intact. We find a direct transition between two insulating phases with quantized Hall conductances of zero and two for the conserved quasiparticles. The energy of quasiparticles acts as a relevant, symmetry-breaking field at the critical point, which splits the direct transition into two conventional plateau transitions. (C) 2001 Elsevier Science B.V. All rights reserved.
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