Static and dynamic properties of inhomogeneous elastic media on disordered substrate

摘要: The pinning of an inhomogeneous elastic medium by a disordered substrate is studied analytically and numerically. static dynamic properties $D$-dimensional system are shown to be equivalent those the well-known problem random manifold embedded in $(D+D)$ dimensions. analogy found very robust, applicable wide range media, including which amorphous or nearly periodic, with local nonlocal elasticity. Also demonstrated explicitly equivalence between depinning transition obtained at constant driving force, self-organized, near-critical behavior (small) velocity drive.