Biological active matter
Exploring the rich physical phenomena displayed by entangled blobs of California Blackworm
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Amorphous Entangled Active Matter W Savoie*, H Tuazon*, I Tiwari, M S Bhamla and D I Goldman, Soft Matter 19 (10), 1952-1965 (2023) (* Equal Contribution)
Collecting-Gathering Biophysics of the Blackworm L. variegatus Harry Tuazon, Chantal Nguyen*, Emily Kaufman*, Ishant Tiwari*, Jessica Bermudez, Darshan Chudasama, Orit Peleg, M Saad Bhamla, Integrative and Comparative Biology 63 (6), 1474-1484 (2023) (*Equal contribution as second authors)
Worm blobs as entangled living polymers: from topological active matter to flexible soft robot collectives Antoine Deblais, KR Prathyusha, Rosa Sinaasappel, Harry Tuazon, Ishant Tiwari, Vishal P Patil, M Saad Bhamla, Soft Matter 19 (37), 7057-7069 (2023)
Understanding the ultrafast jumping mechanism of the nematode Steinernema carpocapsae
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Reversible kink instability drives ultrafast jumping in nematodes and soft robots S Kumar*, I Tiwari*, V M Ortega-Jimenez*, A R Dillman, Dongjing He, Yuhang Hu, M S Bhamla, (under review, manuscript on bioRxiv) (2024) (* Equal Contribution)
Camphor based active matter
Studying the ensemble dynamics of active marangoni swimmers
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How to capture active Marangoni surfers I Tiwari, P Parmananda, Soft Matter 19 (15), 2710-2715 (2023) (Featured on front page cover of Soft Matter, volume 19, issue 15)
Revealing the deterministic components in active avalanche-like dynamics I Tiwari, S Upadhye, VS Akella, P Parmananda, Soft Matter 17 (10), 2865-2871 (2021)
Periodic oscillations in a string of camphor infused disks I Tiwari, P Parmananda, Raghunath Chelakkot, Soft Matter 16 (45), 10334-10344 (2020)
Studying synchronization and related phenomena using rotating camphor infused ribbons
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Rotational synchronization of camphor ribbons J Sharma, I Tiwari, D Das, P Parmananda, V S Akella, V Pimienta, Physical Review E 99 , (6), 012204 (2019)
Rotational synchronization of camphor ribbons in different geometries J Sharma, I Tiwari, D Das, V Pimienta, P Parmananda, Physical Review E 101 , (5), 052202 (2020)
Chimeralike states in a minimal network of active camphor ribbons J Sharma, I Tiwari, D Das, P Parmananda, Physical Review E 103 , (1), 012214 (2021)
Aperiodic bursting dynamics of active rotors J Sharma, I Tiwari, P Parmananda, and M Rivera, Physical Review E 105 , (1), 014216 (2022)
Generation of aperiodic motion due to sporadic collisions of camphor ribbons R Jain, J Sharma, I Tiwari, S D Gadre, S Kumarasamy, P Parmananda, and Awadhesh Prasad, Physical Review E 106, (2), 024201 (2022)
Synchronization and Related Phenomena in nonlinear systems
Exploring the effects of coupling two or more nonlinear oscillators in various settings.
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Ethanol lamp: a simple, tunable flame oscillator and its coupled dynamics M Aravind*, I Tiwari*, V Vasani, J M Cruz, D A Vasquez, P Parmananda, The European Physical Journal Special Topics , 1-6 (2022) (* Equal Contribution)
Quenching of oscillations in a liquid metal via attenuated coupling I Tiwari*, R Phogat*, A Biswas*, P Parmananda, and S Sinha, Physical Review E (Letter) 105 , (3), L032201 (2022) (* Equal Contribution)
Independent-noise provoked spiking, synchronized via coupling I Tiwari, J Escalona, M Rivera, and P Parmananda, Chaos: An Interdisciplinary Journal of Nonlinear Science 32 , (8), 081102 (2022)
Cessation of oscillations in a chemo-mechanical oscillator R Phogat, I Tiwari, P Kumar, M Rivera, P Parmananda, The European Physical Journal B 91 , (6), 1-7 (2018)
Stochastic Resonance
How do noise and nonlinearity interact constructively?
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Stochastic resonance via parametric adaptation: Experiments and numerics I Tiwari, J M Cruz, P Parmananda, M Rivera, Physical Review E (Rapid Communication) 100 , (6), 060202 (2019)
Intrinsic stochastic resonance via set-point variation K Joshi, I Tiwari, A Nandi, P Parmananda, Physical Review E 98 , (1), 012218 (2018)
An alternate protocol to achieve stochastic and deterministic resonances I Tiwari, D Dave, R Phogat, N Khera, P Parmananda, Chaos: An Interdisciplinary Journal of Nonlinear Science 27 , (10), 103112 (2017)
Intrinsic periodic and aperiodic stochastic resonance in an electrochemical cell I Tiwari, R Phogat, P Parmananda, J L Ocampo-Espindola, M Rivera, Physical Review E 94 , (2), 022210 (2016)
Agent based modelling of epidemics
Simulating the evolution of a contagious disease through a computationally frugal agent-based model
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Interventions and their efficacy in controlling the spread of an epidemic: A numerical study Shantanu Shukla, I Tiwari, P Sarin, and P Parmananda, Chaos: An Interdisciplinary Journal of Nonlinear Science 32 , (3), 031102 (2022)
Predictive modeling of disease propagation in a mobile, connected community using cellular automata I Tiwari, P Sarin, P Parmananda, Chaos: An Interdisciplinary Journal of Nonlinear Science 30 (8), 081103 (2020)
Adaptation to the edge of Chaos
How even continuous time systems move towards the edge of chaos when given the right self-feedback
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Adaptation to the edge of chaos in continuous time dynamical systems K Srinivasan, I Tiwari, P Parmananda, EPL (Europhysics Letters) 123 , (6), 60003 (2018)