Quantum Hall ferromagnets, cooperative transport anisotropy, and the random field Ising model
(2002)
Exact S-matrices for supersymmetric sigma models and the Potts model
(2002)
Phonon-Mediated Anomalous Dynamics of Defects
ArXiv cond-mat/0207365 (2002)
Abstract:
Dynamics of an array of line defects interacting with a background elastic medium is studied in the linear regime. It is shown that the inertial coupling between the defects and the ambient phonons leads to an anomalous response behavior for the deformation modes of a defect-lattice, in the form of anisotropic and anomalous mass and elastic constants, resonant dissipation through excitation of phonons, and instabilities. The case of a single fluctuating line defect is also studied, and it is shown that it could lead to formation of shock waves in the elastic medium for sufficiently high frequency deformation modes.THEORY OF SURFACE-ACOUSTIC-WAVE PROPAGATION IN THE ν = 5/2 FRACTIONAL QUANTUM HALL STATE
World Scientific Publishing (2002) 47-47