12 citations · 35 across the 11 of their papers we have counts for
12 papers
Memory with Onsager-Casimir symmetry: Rotating particle in a viscoelastic fluid
Debankur Das, Niloyendu Roy, Niklas Windbacher +2
We study the stochastic dynamics of a rotating Brownian particle in a non-Markovian fluid. Experimentally, we find that rotation enhances the long-time diffusivity of the particle…
Resetting in a viscoelastic bath: the bath remembers
Ion Santra, Debankur Das
We study stochastic resetting of a probe particle in a viscoelastic environment where only the probe is reset while the medium retains memory of its past dynamics. Using a minimal…
Activated solids: Spontaneous deformations, non-affine fluctuations, softening, and failure
Parswa Nath, Debankur Das, Surajit Sengupta +1
Internal activity can fundamentally reshape the mechanical behavior of solids, yet its role in softening and failure remains incompletely understood. In this study, we investigate…
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…
Friction of a driven chain: Role of momentum conservation, Goldstone and radiation modes
Debankur Das, Richard Vink, Matthias Krüger
We analytically study friction and dissipation of a driven bead in a 1D harmonic chain, and analyze the role of internal damping mechanism as well as chain length. Specifically, we…
Memory induced Magnus effect
Xin Cao, Debankur Das, Niklas Windbacher +3
Spinning objects which move through air or liquids experience a Magnus force. This effect is commonly exploited in ball sports but also of considerable importance for applications…
Emergent power-law interactions in disordered crystals
Pappu Acharya, Debankur Das, Surajit Sengupta +1
We derive exact results for the fluctuations in energy produced by microscopic disorder in near-crystalline athermal systems. Our formalism captures the heterogeneity in the elasti…
Displacement correlations in disordered athermal networks
Debankur Das, Pappu Acharya, Kabir Ramola
We derive exact results for correlations in the displacement fields in near-crystalline athermal systems in two dimensions. We analyze the…
Disorder Perturbation Expansion for Athermal Crystals
Pappu Acharya, Debankur Das, Kabir Ramola
We introduce a perturbation expansion for athermal systems that allows an exact determination of displacement fields away from the crystalline state as a response to disorder. We s…
Long-range correlations in pinned athermal networks
Debankur Das, Pappu Acharya, Kabir Ramola
We derive exact results for displacement fields that develop as a response to external pinning forces in two dimensional athermal networks. For a triangular lattice arrangement of…
Wrinkles, folds and ripplocations: unusual deformation structures of confined elastic sheets at non-zero temperatures
Debankur Das, Jürgen Horbach, Peter Sollich +2
We study the deformation of a fluctuating crystalline sheet confined between two flat rigid walls as a simple model for layered solids where bonds among atoms {\it within} the same…
Plastic deformation of a permanently bonded network: stress relaxation by pleats
Saswati Ganguly, Debankur Das, Jürgen Horbach +3
We show that a flat two dimensional network of connected vertices, when stretched, may deform plastically by producing `pleats'; system spanning linear structures with width compar…