5 papers
Monte-Carlo study of Compositional Heterogeneity in Multicomponent Cluster Crystals
Roshan Maharana, Daan Frenkel, Jure Dobnikar
Soft (sub)micron-sized particles with bounded interactions can form cluster crystals, periodic structures in which multiple particles occupy the same lattice site. While the thermo…
Instabilities govern the low-frequency vibrational spectrum of amorphous solids
Surajit Chakraborty, Roshan Maharana, Smarajit Karmakar +1
Amorphous solids exhibit an excess of low-frequency vibrational modes beyond the Debye prediction, contributing to their anomalous mechanical and thermal properties. Although a $ω^…
Efficient Simulation of Deformable Particles
Roshan Maharana
We provide a two dimensional deformation model to describe how soft squishy circular particles respond to external forces and collisions. This model involves formulating mathematic…
Universal stress correlations in crystalline and amorphous packings
Roshan Maharana, Debankur Das, Pinaki Chaudhuri +1
We present a universal characterization of stress correlations in athermal systems, across crystalline to amorphous packings. Via numerical analysis of static configurations of par…
Stress correlations in near-crystalline packings
Roshan Maharana, Kabir Ramola
We derive exact results for stress correlations in near-crystalline systems in two and three dimensions. We study energy minimized configurations of particles interacting through H…