Splitting the multiphase point

Phase Transitions 57:1-3 SEC . B (1996) 49-58

Abstract:

Models with competing interactions, for example the ANNNI model, can have special points at which the ground state is infinitely degenerate, so-called multiphase points. Small perturbations can lift this degeneracy and give rise to infinite sequences of long-period phases. This paper compares the effect of three possible perturbations, quantum fluctuations, thermal fluctuations and the softening of the spins from their quantised positions.

Exactly solvable field theory of tunneling between edge states in the fractional quantum Hall effect

Nuclear and Particle Physics Proceedings Elsevier 45:1 (1996) 29-37

Authors:

P Fendley, AWW Ludwig, H Saleur

Complete wetting in the three-dimensional transverse Ising model

JOURNAL OF STATISTICAL PHYSICS 84:3-4 (1996) 323-335

Authors:

AB Harris, C Micheletti, JM Yeomans

Electronic model for superconductivity - Reply

PHYSICAL REVIEW LETTERS 76:22 (1996) 4290-4290

Authors:

FHL Essler, VE Korepin, K Schoutens

Integrable impurity in the supersymmetric t-J model

PHYSICAL REVIEW LETTERS 77:25 (1996) 5098-5101

Authors:

G Bedurftig, FHL Essler, H Frahm