P
Pulak Kumar Ghosh
Researcher at Presidency University, Kolkata
Publications - 89
Citations - 1792
Pulak Kumar Ghosh is an academic researcher from Presidency University, Kolkata. The author has contributed to research in topics: Brownian motion & Particle. The author has an hindex of 24, co-authored 82 publications receiving 1570 citations. Previous affiliations of Pulak Kumar Ghosh include Global Alliance in Management Education & Indian Association for the Cultivation of Science.
Papers
More filters
Journal ArticleDOI
Self-Propelled Janus Particles in a Ratchet: Numerical Simulations
Pulak Kumar Ghosh,Vyacheslav R. Misko,Vyacheslav R. Misko,Fabio Marchesoni,Fabio Marchesoni,Franco Nori,Franco Nori +6 more
TL;DR: It is proved that ratcheting of Janus particles can be orders of magnitude stronger than for ordinary thermal potential ratchets and thus experimentally accessible and in particular, autonomous pumping of a large mixture of passive particles can been induced by just adding a small fraction of JanUS particles.
Journal ArticleDOI
Geometric Stochastic Resonance
TL;DR: A Brownian particle moving across a porous membrane subject to an oscillating force exhibits stochastic resonance with properties which strongly depend on the geometry of the confining cavities on the two sides of the membrane, thus leading to distinctive optimal synchronization conditions.
Journal ArticleDOI
Giant negative mobility of Janus particles in a corrugated channel.
TL;DR: Numerically simulate the transport of elliptic Janus particles along narrow two-dimensional channels with reflecting walls and suggests that a small external drive suffices to efficiently direct self-propulsion of rod-likeJanus particles in rough channels.
Journal ArticleDOI
Active Brownian motion in a narrow channel
Xue Ao,Pulak Kumar Ghosh,Yunyun Li,Gerhard Schmid,Peter Hänggi,Peter Hänggi,Fabio Marchesoni,Fabio Marchesoni +7 more
TL;DR: In this article, the self-propulsion torque of chirality of a swimmer is modeled so as to incorporate a nonzero torque (propulsion chiral) and the effect of the torque on the autonomous current of chiral microswimmers in channels of different geometries is discussed.
Journal ArticleDOI
Manipulating chiral microswimmers in a channel.
TL;DR: It is shown that chiral microswimmers drift autonomously along a narrow channel under more general asymmetry conditions than previously reported, a property of potential impact on their fabrication and technological applications.