Current Research
- My research integrates both experimental and computational approaches to explore complex, nonlinear phenomena across several dynamical systems. It covers a diverse set of complex phenomena within the realms of electrochemistry, nanomaterials, and active matter Physics.
- 1. Complex Spatio-Temporal Dynamics in Self-Propelled Drops: My primary research focuses on the spatio-temporal dynamics of self-propelled drops which move due to surface tension gradients caused by mostly chemical or thermal effects. Self-propelled drops interact with each other and their immediate environment, and therefore often exhibit spontaneous pattern formation and collective behaviour. My research explores how drops synchronize or interact under various conditions. These dynamics reveal insights into how collective motion emerges from individual interactions, with potential implications in fields like soft matter physics. The study of self-propelled drops has exciting applications in microfluidics as well, where controlled movement and manipulation of droplets is essential for micro-scale technologies. Additionally, understanding the dynamics of self-propelled systems can help in the design of self-assembling materials and systems, potentially revolutionizing fields like smart materials and autonomous systems helping medical science. Through a combination of experimental observations and computational modeling, I aim to uncover the underlying principles governing these complex dynamical systems.
- 2. Electrochemical Oscillators and Synchronization Phenomena: Another key focus of my research is on electrochemical oscillators which exhibit self-sustained oscillations under suitable set of control parameters. I study the synchronization phenomena in these systems, where multiple oscillators interact and synchronize their behavior. Investigating these systems under various coupling mechanisms and noise amplitudes, I try to understand how electrochemical oscillators can behave under different conditions. This has broader implications for fields such as reaction-diffusion systems and even biological processes like neural synchronization, reproductive synchrony, biobehavioral synchrony, etc.
Recent Publications
1. T. Roy, J. Escalona, M. Rivera, F. Montoya, E. R. Álvarez, R. Phogat, and P. Parmananda, "Quenching of oscillations via attenuated coupling for dissimilar electrochemical systems", Physical Review E, 107(2), 024208, (2023)
2.
T. Roy, S. S. Chaurasia, J. M. Cruz, V. Pimienta, and P. Parmananda, “Modes of synchrony in self-propelled pentanol drops", Soft Matter, 18(8), 1688-1695, (2022)
3.
T. Roy, S. S. Chaurasia, and P. Parmananda, “Phase-flip transition in volume-mismatched pairs of coupled 1-pentanol drops”, Physical ReviewE, 106(3), 034614, (2022)
4.
T. Roy and P. Parmananda, “Velocity Controlled PatternWriting: An application of Stochastic Resonance”, Chaos: An Interdisciplinary Journal of Nonlinear Science, 29, 093121, (2019)
5.
T. Roy, V. Agarwal, B. P. Singh, and P. Parmananda, “Noise Assisted Pattern Fabrication”, Applied Physics Letters, 112, 161601 (2018)