TY - JOUR AU - Grigera, T.S. AU - Martín Mayor, Víctor AU - Parisi, G. AU - Verrocchio, P. PY - 2001 DO - 10.1103/PhysRevLett.87.085502 SN - 0031-9007 UR - https://hdl.handle.net/20.500.14352/60324 T2 - Physical review letters AB - The topological nature of the disorder of glasses and supercooled liquids strongly affects their high-frequency dynamics. In order to understand its main features, we analytically studied a simple topologically disordered model, where the particles... LA - eng PB - American Physical Society KW - Frequency propagating modes KW - Instantaneous normal-modes KW - Glass-forming liquids KW - Vitreous silica KW - Dynamics KW - Sound KW - Approximation KW - Localization KW - Exitations KW - Relaxation. TI - Vibrational spectrum of topologically disordered systems TY - journal article VL - 87 ER -