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Universal Density of Low Frequency States in Amorphous Solids at Finite Temperatures
Prasenjit Das, Itamar Procaccia
It has been established that the low frequency quasi-localized modes of amorphous solids at zero temperature exhibit universal density of states, depending on the frequencies as $D…
Surface-directed Spinodal Decomposition on Morphologically Patterned Substrates
Prasenjit Das, Prabhat K. Jaiswal, Sanjay Puri
This paper is the second in a two-part exposition on {\it surface-directed spinodal decomposition} (SDSD), i.e., the interplay of kinetics of wetting and phase separation at a surf…
Robustness of Density of Low Frequency States in Amorphous Solids
Prasenjit Das, H. George E. Hentschel, Edan Lerner +1
Low frequency quasi-localized modes of amorphous glasses appear to exhibit universal density of states, depending on the frequencies as . To date various models of g…
Instabilities of Time-averaged Configurations in Thermal Glasses
Prasenjit Das, Valery Ilyin, Itamar Procaccia
In amorphous solids at finite temperatures the particles follow chaotic trajectories which, at temperatures sufficiently lower than the glass transition, are trapped in "cages". Av…
Scaling theory of shear-induced inhomogeneous dilation in granular matter
Prasenjit Das, H. George E. Hentschel, Itamar Procaccia
Shearing with a finite shear rate a compressed granular system results in a region of grains flowing over a compact, static assembly. Perforce this region is dilated to a degree th…
Universality of Domain Growth in Antiferromagnets with Spin-Exchange Kinetics
Prasenjit Das, Tanusri Saha-Dasgupta, Sanjay Puri
We study phase ordering kinetics in symmetric and asymmetric binary mixtures, undergoing an order-disorder transition below the critical temperature. Microscopically, we model the…