126 citations · 525 across the 19 of their papers we have counts for
20 papers
Understanding quorum sensing self-organization: Clustering and defect-induced ordering of diffusing particles
Feifei Liu, Vyacheslav R. Misko, Yunyun Li +1
Quorum sensing (QS) is known in biology as a form of intercellular communication mediated by signaling molecules called autoinducers. The QS protocol governs the transition from in…
Large-scale dynamics in visual quorum sensing chiral suspensions
Yuxin Zhou, Qingqing Yin, Shubhadip Nayak +4
Motility induced phase separation is an efficient aggregation mechanism of active matter, yet biological systems exhibit richer organization through communication among constituent…
Active Particle Diffusion in Convection Roll Arrays
Pulak Kumar Ghosh, Fabio Marchesoni, Yunyun Li +1
We numerically investigated the Brownian motion of active Janus particles in a linear array of planar counter-rotating convection rolls at high Péclet numbers. Similarly to passive…
Binary Mixtures in Linear Convection Arrays
Pulak Kumar Ghosh, Yuxin Zhou, Yunyun Li +2
We numerically investigated the dynamics of a mixture of finite-size active and passive particles in a linear array of convection rolls. The interplay of advection and steric inter…
Diffusion Transients in Motility-Induced Phase Separation
Shubhadip Nayak, Poulami Bag, Pulak K. Ghosh +4
We numerically investigate normal diffusion in a two-dimensional athermal suspension of active particles undergoing motility-induced phase separation. The particles are modeled as…
A quorum sensing active matter in a confined geometry
Yuxin Zhou, Yunyun Li, Fabio Marchesoni
Inspired by the problem of biofilm growth, we numerically investigate clustering in a two-dimensional suspension of active (Janus) particles of finite size confined in a circular c…
Autonomous Ratcheting by Stochastic Resetting
Pulak K. Ghosh, Shubhadip Nayak, Jianli Liu +2
We propose a generalization of the stochastic resetting mechanism for a Brownian particle diffusing in a one-dimensional periodic potential: randomly in time, the particle gets res…
Non-Gaussian Normal Diffusion in Low Dimensional Systems
Qingqing Yin, Yunyun Li, Fabio Marchesoni +2
Brownian particles suspended in disordered crowded environments often exhibit non-Gaussian normal diffusion (NGND), whereby their displacements grow with mean square proportional t…
Enhanced motility in a binary mixture of active nano/microswimmers
Debajyoti Debnath, Pulak K. Ghosh, Vyacheslav R. Misko +3
It is often desirable to enhance the motility of active nano- or microscale swimmers such as, e.g., self-propelled Janus particles as agents of chemical reactions or weak sperm cel…
Diffusion of Chiral Janus Particles in Convection Rolls
Yunyun Li, Lihua Li, Fabio Marchesoni +2
The diffusion of an artificial active particle in a two-dimensional periodic pattern of stationary convection cells is investigated by means of extensive numerical simulations. In…
Non-Gaussian Normal Diffusion in a Fluctuating Corrugated Channel
Yunyun Li, Fabio Marchesoni, Debajyoti Debnath +1
A Brownian particle floating in a narrow corrugated (sinusoidal) channel with fluctuating cross section exhibits non-Gaussian normal diffusion. Its displacements are distributed ac…
Diffusion of Colloidal Rods in Corrugated Channels
Xiang Yang, Qian Zhu, Chang Liu +5
In many natural and artificial devices diffusive transport takes place in confined geometries with corrugated boundaries. Such boundaries cause both entropic and hydrodynamic effec…
Hydrodynamic and entropic effects on colloidal diffusion in corrugated channels
Xiang Yang, Chang Liu, Yunyun Li +3
In the absence of advection, confined diffusion characterizes transport in many natural and artificial devices, such as ionic channels, zeolites, and nanopores. While extensive the…
Nonlocality of relaxation rates in disordered landscapes
Yunyun Li, Debajyoti Debnath, Pulak K. Ghosh +1
We investigate both analytically and by numerical simulation the relaxation of an overdamped Brownian particle in a 1D multiwell potential. We show that the mean relaxation time fr…
Cargo Towing by Artificial Swimmers
Debajyoti Debnath, Pulak K. Ghosh, Yunyun Li +2
An active swimmer can tow a passive cargo by binding it to form a self-propelling dimer. The orientation of the cargo relative to the axis of the active dimer's head is determined…
Memory effects and active Brownian diffusion
Pulak K. Ghosh, Yunyun Li, Giampiero Marchegiani +1
A self-propelled artificial microswimmer is often modeled as a ballistic Brownian particle moving with constant speed aligned along one of its axis, but changing direction due to r…
Pseudo-Chemotactic Drifts of Artificial Microswimmers
Pulak K. Ghosh, Yunyun Li, Fabio Marchesoni +1
We numerically investigate the motion of active artificial microswimmers diffusing in a fuel concentration gradient. We observe that, in the steady state, their probability density…
Diffusion of Chiral Janus Particles in a Sinusoidal Channel
Xue Ao, Pulak Kumar Ghosh, Yunyun Li +3
We investigate the transport diffusivity of artificial microswimmers, a.k.a. Janus particles, moving in a sinusoidal channel in the absence of external biases. Their diffusion cons…
Active Brownian motion in a narrow channel
Xue Ao, Pulak Kumar Ghosh, Yunyun Li +3
We review recent advances in rectification control of artificial microswimmers, also known as Janus particles, diffusing along narrow, periodically corrugated channels. The swimmer…
Wave-packet rectification in nonlinear electronic systems: A tunable Aharonov-Bohm diode
Yunyun Li, Jun Zhou, Fabio Marchesoni +1
Rectification of electron wave-packets propagating along a quasi-one dimensional chain is commonly achieved via the simultaneous action of nonlinearity and longitudinal asymmetry,…