22 citations · 68 across the 12 of their papers we have counts for
13 papers
Collective Behavior of Intelligent Active Brownian Particles in the Presence of a Static Obstacle
Surya Narayan Sahoo, Arabinda Bera, Jiarul Midya
Using computer simulations, we investigate the collective behavior of two-dimensional active Brownian particles (ABPs) with excluded-volume interactions in the bulk and in the pres…
The Physics of Topological Defects in Glasses
Arabinda Bera, Peter Schall, Timothy W. Sirk +2
Topological defects play a central role in the mechanical behavior of crystalline materials, yet their relevance to amorphous solids has only recently begun to emerge. Over the las…
Microscopic origin of shear bands in 2D amorphous solids from topological defects
Arabinda Bera, Debjyoti Majumdar, Timothy W. Sirk +2
The formation of shear bands in amorphous solids such as glasses has remained an open question in our understanding of condensed matter and amorphous materials. Unlike in crystals,…
Burgers rings as topological signatures of Eshelby-like plastic events in glasses
Arabinda Bera, Ido Regev, Alessio Zaccone +1
Eshelby-like quadrupolar structures serve as the fundamental microscopic units for characterizing plastic instabilities in amorphous solids and play a crucial role in explaining th…
Density-field structures in a few systems undergoing velocity ordering
Subir K. Das, Sohini Chatterjee, Wasim Akram +3
We consider two (off-lattice) varieties of out-of-equilibrium systems, viz., granular and active matter systems, that, in addition to displaying velocity ordering, exhibit fascinat…
Geometric indicators of local plasticity in glasses measured by scanning small-beam diffraction
Amelia C. Y. Liu, Huyen Pham, Arabinda Bera +7
The notion of defects in crystalline phases of matter has been extremely powerful for understanding crystal growth, deformation and melting. Many of these discontinuities in the pe…
Unveiling the Asymmetry in Density within the Shear Bands of Metallic Glasses
Harald Rösner, Arabinda Bera, Alessio Zaccone
Plastic deformation in metallic glasses at room temperature leads to the development of shear bands due to shear localization. In many experiments, shear bands have shown local den…
Hedgehog topological defects in 3D amorphous solids
Arabinda Bera, Alessio Zaccone, Matteo Baggioli
The underlying structural disorder renders the concept of topological defects in amorphous solids difficult to apply and hinders a first-principle identification of the microscopic…
Experimental identification of topological defects in 2D colloidal glass
Vinay Vaibhav, Arabinda Bera, Amelia C. Y. Liu +3
Topological defects are singularities within a field that cannot be removed by continuous transformations. The definition of these irregularities requires an ordered reference conf…
Clustering of negative topological charge precedes plastic failure in 3D glasses
Arabinda Bera, Matteo Baggioli, Timothy C. Petersen +2
The deformation mechanism in amorphous solids subjected to external shear remains poorly understood because of the absence of well-defined topological defects mediating the plastic…
Macroscopic rotation of active colloids in a colloid-polymer mixture confined inside a spherical cavity
Arabinda Bera, Kurt Binder, Sergei A. Egorov +1
From studies via Molecular Dynamics simulations, we report results on structure and dynamics in mixtures of active colloids and passive polymers that are confined inside a spherica…
Active Particles in Explicit Solvent: Dynamics of clustering for alignment interaction
Arabinda Bera, Soudamini Sahoo, Snigdha Thakur +1
We study dynamics of clustering in systems containing active particles that are immersed in an explicit solvent. For this purpose we have adopted a hybrid simulation method, consis…
Aging Phenomena during Phase Separation in Fluids: Decay of autocorrelation for vapor-liquid transitions
Sutapa Roy, Arabinda Bera, Suman Majumder +1
We performed molecular dynamics simulations to study relaxation phenomena during vapor-liquid transitions in a single component Lennard-Jones system. Results from two different ove…