The Uncertainty Laboratory, IIT Madras

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The Uncertainty Laboratory, IIT Madras

Our primary research interest is stochastic mechanics.

01/05/2026

Congratulations to Prabhat Karmakar for his succesful PhD defence. He was jointly guided by Prof Ilaksh Adlakha and Sayan Gupta. His thesis examienrs were Prof Pritam Chakraborty from IIT Kanpur and Prof Chaitanya from IIT Palakkad.
Prabhat is now taking up a postdoctoral position in University of Farrar, Italy.

04/01/2025

It was very nice to meet Avisha. She submitted and had defended her thesis in the middle of COVID in 2020, so there wasn't an opportunity to have a proper goodbye. After working at Eaton in Pune for the last four years, she has just moved to chennai taking up a position in Vestas. For her MS thesis, she worked on an ADA sponsored project and was guided jointly by Sunetra and me.

11/12/2024

Our paper on how social media plays a role in societal polarization.
My recently graduated PhD student Samana is the lead author.
Studies are now in progress with data gleaned from social media.

The full paper is available at https://www.sciencedirect.com/science/article/pii/S0960077924014310?via%3Dihub

22/11/2024

Samana P successfully defends her PhD thesis "Transitions in Complex Networked Dynamical Systems" in which she investigates dynamical transitions in complex networked dynamical systems, with applications that range from neuronal dynamics, energy efficiency in a network of energy harvesters as well as social dynamics. Specifically, the thesis explores the conditions for amplitude death in a complex network of chaotic systems, resilience to faults in terms of energy efficiency in a network of vibration based energy harvesters, role of social media leading to societal polarization and the conditions that lead to Turing instability in complex networked systems.

Prof Marian Boguna, Department of Physics, University of Barcelona was the examiner. The doctoral committee members were Prof Ganesh Tamadapu, Prof Mahesh Panchagnula, Prof Shaikh Faruque Ali and Prof Raghukanth STG

Samana has started her own company and is now busy in setting it up.

Congratulations Samana !!! best wishes for the journey ahead !

09/11/2024

Our recent paper in Physics of Fluids AIP Publishing.
The lead author Rajanya Chatterjee is pursuing her PhD and is being jointly guided by
Sunetra Sarkar and Sayan Gupta. Chhote Lal Shah is a former student from the Biomimetics and Dynamics Laboratory, IIT Madras and completed his PhD with Sunetra Sarkar in 2023.

08/09/2024

The formation of patterns such as in sand dunes to animal bodies is the result of non-equilibrium self organization following Turing instability in spatio-temporal dynamical systems. Similar phenomenon is observed in complex networked dynamical systems as well, such as in social media networks. We show in our work that the conditions for Turing instability, as discussed in the literature, are not sufficient and that clustering plays an important role as well.

Moreover, analysis of the Laplacian eigenvector localization properties reveal distinct signatures in the hypergeometric metric space, that enable identifying the so called Turing patterns even in complex networks.

Read more about our work in our latest publication in Chaos: An interdisciplinary Journal of Nonlinear Science AIP Publishing, Vol 34, 093109, (2024). https://lnkd.in/gNfTzHNb

The lead author, Samana Pranesh just submitted her PhD thesis.
Devanand Jaiswal is a former postdoc.

05/09/2024

Teacher's day gifts! With 5 PhD students completing their thesis since the last week of April (with Samana submitting her thesis today morning), the lab is now almost empty. Rahul and Samana left within less than a week. Happy for all of them, but will miss them as well.

23/08/2024

It was a pleasure to once again meet one of my first research students after 11 years of his graduation. Rangaraj was among the first group of students who helped in setting up the Lab and find my feet at IIT Madras.

Rangaraj had worked on the problem of system identification using principles of dynamic Bayesian estimation and had developed a novel particle filtering techqniue in polynomial chaos basis. We had later used his work on a terramechanics problem for a lunar rover, by another PhD student, Shamrao, from the Indian Space Research Organization.

Rangaraj is now working in Mercedes and looks exactly the same as he did 11 years ago. It was nice catching up with him.

22/07/2024

It is that time of the year when students have been meeting up to say their goodbyes, and former students come to meet.

19/07/2024

Three PhD s from the lab this convocation.

13/07/2024

Lab get together to celebrate Dhrubajyoti's PhD graduation.

Address

MSB 108, Applied Mechanics, IIT Chennai
Chennai
600036

Telephone

00914422575071

Website

http://home.iitm.ac.in/sayan

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