activity
20162025
most citedFast Bayesian inference of optical trap stiffness and particle diffusion

36 citations · 116 across the 15 of their papers we have counts for

collaborators

15 papers

cond-mat.stat-mech2025

A stochastic heat engine driven using a nonlinear protocol

Amrutayani Panda, Biswajit Das, Shuvojit Paul +2

A colloidal particle confined in a time-dependent optical trap can function as a microscopic heat engine, with optimization strategies playing a crucial role in enhancing its perfo…

physics.optics2025

Simultaneous active and diffusive behaviour of asymmetric microclusters in a photophoretic trap

Anita Pahi, Kirty Ranjan Sahoo, Biswajit Das +2

Active and diffusive motion in Brownian particles are regularly observed in fluidic environments, albeit at different time scales. Here, we experimentally study the dynamics of hig…

cond-mat.soft2025

Decoding active force fluctuations from spatial trajectories of active systems

Anisha Majhi, Biswajit Das, Subhadeep Gupta +4

Mesoscopic active systems exhibit various unique behaviours - absent in passive systems - due to the forces generated by the corresponding constituents by converting their availabl…

physics.optics2024

A study of the coupled dynamics of asymmetric absorbing clusters in a photophoretic trap

Anita Pahi, Shuvojit paul, Ayan Banerjee

We report a study on the dynamics of absorbing asymmetric carbon clusters trapped by a loosely focused Gaussian beam using photophoretic force. At high laser powers, all the trappe…

cond-mat.stat-mech2024★ 1 cited

Irreversibility of mesoscopic processes with hydrodynamic interactions

Biswajit Das, Sreekanth K Manikandan, Shuvojit Paul +3

Optically confined colloidal particles, when placed in close proximity, form a dissipatively coupled system through hydrodynamic interactions. The role of such interactions influen…

cond-mat.stat-mech2023★ 18 cited

Enhanced directionality of active processes in a viscoelastic bath

Biswajit Das, Shuvojit Paul, Sreekanth K. Manikandan +1

Active fluctuations are known to play a significant role in the intracellular transport of passive objects. However, the effect of viscoelasticity of the environment in shaping suc…