3 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…