The workshop on “Physics of life: Active and living matter (PoL24)” is a part of the Golden Jubilee celebration of the Institute of Physics, Bhubaneswar. The conference is co-organized by the Indian Institute of Science Education and Research, Mohali (IISER Mohali). Research in active systems, both natural and artificial, is developing quickly. In order to comprehend and address biological issues, fundamental physics principles have been used, and artificial active systems have opened up new possibilities for emergent phenomena. New experimental findings question the early theories, and novel theoretical ideas illuminate various collective processes. We want to provide an environment where theorists and experimentalists can interact and share their viewpoints on active systems. In this fascinating topic, we’ll concentrate on exchanging ideas involving novel experiments, models, and emergent states. With this workshop, we hope to bring together a diverse and active group of scientists to exchange ideas.

  • Natural and artificial active systems across all scales
  • Biophysics of cells to tissues
  • Collective properties: alignment, phase separation, and beyond
  • Non-reciprocal interaction, vision cone, stigmergy, quorum sensing
  • Active colloids, polymers, and membranes
  • Physics of self-propelled components
  • Active visco-elastic systems
  • Wednesday, 07th February, evening -inauguration, followed by registration and welcome dinner
  • Thursday, 08th February, morning -scientific sessions start
  • Saturday, 10th February, evening -workshop ends
Days/Times Day-1 (7 Feb) Day-2 (8 Feb) Day-3 (9 Feb) Day-4 (10 Feb)
09:00-9:30 Shashi Thutupalli

tba 		Madan Rao

Mechanically excitable active epithelia
09:30-10:00 Fernando Peruani

Challenges in Active Matter 		Arnab Saha

Microscopic Heat Engines: From Passive to Active 		Vijaykumar Krishnamurthy

Physics of asymmetric cytokinetic ingression
10:00-10:30 Prasad Parlekar

Concentration wave turbulence in polar active matter 		Pinaki Chaudhuri

Active breathing: a micro-meso analysis 		Anirban Sain

Active chiral flows during cell division
10:30-11:00 Sumesh P Thampi

Spontaneous flow transitions in confined active nematics 		Saroj Nandi

The glassy dynamics in confluent epithelial monolayers 		Amitabha Nandi

Kinesin-mediated axonal transport of vesicles
11:00-11:30 TEA
 TEA
 TEA
11:30-12:00 Raja Paul

Flocking transition in discretized Vicsek model 		Sunil Kumar

Vesicle morphology changes through active membrane recycling 		Vijaykumar Chikkadi

Nonequilibrium assembly of colloidal particles in active liquids
12:00-12:30 Abhik Basu

Mobility-induced order in active XY spins on a substrate 		Snigdha Thakur

Dynamics of Flexible Active Polymer 		Shraddha Mishra

Micro-swimmers Unveil Novel Dynamical Phase in Active Nematics
12:30-13:00 Subir K Das

Kinetics of Phase Transitions in Systems of Aligning Active Particles 		Raghunath Chelakkot

Dynamic patterns due to follower activity in particle chains 		Kabir Ramola

Current Fluctuations in Interacting and Non-interacting Active Particle Systems
13:00-13:30 Lunch Lunch Lunch
13:30-14:00 Lunch + poster
 Lunch Lunch + poster
14:00-14:30 poster Sudipto Muhuri

Effect of contact inhibition locomotion on confined cellular organization 		poster
14:30-15:00 Sanjib Sabhapandit

Novel features of direction reversing active Brownian particle 		Subhajit Paul

Dynamical Crossovers and Correlations in a Linear Chain of Active Particles 		P K Mohanty

Interactive active matter
15:00-15:30 Urna Basu

Activity reservoirs and energy transport in one-dimension
 TEA Punyabrata Pradhan

Time-dependent properties of hardcore run-and-tumble particles
15:30-16:00 Anupam Kundu

Active dynamics at microscopic level 		Discussion Arnab Pal

Anomalous relaxation in active systems
16:00-16:30 TEA Discussion Vote of thanks
16:30-17:00 Pramod Pullarkat

Actin dynamics and force generation in membrane nanotubes 		Discussion High TEA
17:00-17:30 Ramanujam Srinivasan

Assembly of bacterial cytokinetic ring proceeds via a helical intermediate and is driven by treadmilling and lateral association of filaments 		Discussion
17:30-18:00 Welcome address and inauguration by the Director, IOP Sabyasachi Rakshit

Dynamics of autonomous chiral active GUVs 		poster
18:00-18:30 High Tea Sathish Akella

The Narrow Escape Problem of a Chiral Active Particle (CAP): An Optimal Scheme
18:30-19:00 poster
19:00-19:30 Welcome Dinner Dinner Dinner
SI. No. Name Affiliation
1 Sathish Akella   Indian Institute Of Technology Jammu, India
2 Abhik Basu Saha Institute of Nuclear Physics, India
3 Urna Basu S. N. Bose National Centre for Basic Sciences, India
4 Pinaki Chaudhuri Institute of Mathematical Sciences Chennai, India
5 Raghunath Chelakkot   Indian Institute of Technology Bombay, India
6 Vijaykumar Chikkadi Indian Institute of Science Education and Research Pune, India
7 Debashish Chowdhury DIT University, India
8 Subir K Das Jawaharlal Nehru Centre For Advanced Scientific Research, India
9 Vijaykumar Krishnamurthy International Centre for Theoretical Sciences, India
10 P B Sunil Kumar Indian Institute of Technology Madras, India
11 Anupam Kundu International Centre for Theoretical Sciences, India
12 Shraddha Mishra  Indian Institute of Technology (BHU) Varanasi, India
13 P K Mohanty Indian Institute of Science Education and Research Kolkata, India
14 Sudipto Muhuri Pune University, India
15 Amitabha Nandi  Indian Institute of Technology Bombay, India
16 Saroj Nandi Tata Institute of Fundamental Research Hyderabad, India
17 Ignacio Pagonabarraga University of Barcelona, Spain
18 Arnab Pal Institute of Mathematical Sciences Chennai, India
19 Prasad Parlekar  Tata Institute of Fundamental Research Hyderabad, India
20 Raja Paul  Indian Association for the Cultivation of Science Kolkata, India
21 Subhajit Paul University of Delhi, India
22 Fernando Peruani LPTM, CY-Cergy Paris University, France
23 Punyabrata Pradhan S. N. Bose National Centre for Basic Sciences, India
24 Pramod A Pullarkat Raman Research Institute, India
25 Sabyasachi Rakshit Indian Institute of Science Education and Research Mohali, India
26 Kabir Ramola Tata Institute of Fundamental Research Hyderabad, India
27 Madan Rao National Centre for Biological Sciences, India
28 Sanjib Sabhapandit Raman Research Institute, India
29 Arnab Saha University of Calcutta, India
30 Anirban Sain Indian Institute of Technology Bombay, India
31 R Srinivasan National Institute of Science Education and Research Bhubaneswar, India
32 Snigdha Thakur Indian Institute of Science Education and Research Bhopal, India
33 Sumesh P Thampi Indian Institute of Technology Madras, India
34 Shashi Thutupalli National Centre for Biological Sciences, India

How to Reach

There are a few options to reach Toshali Sands from Bhubaneswar Airport/ Railway Station

Bhubaneswar Railway Station to IOPB 6km.

Bhubaneswar Airport to IOPB 7.7km.

Bhubaneswar Bus Stand to IOPB 7.6km.

Talks

Venkata Sathish Akella

The Narrow Escape Problem of a Chiral Active Particle (CAP): An Optimal Scheme
“We report a simulation study on the narrow escape kinetics of a Chiral Active Particle (CAP) confined to a circular domain with a narrow escape opening. The study’s main objective is to optimize the CAP’s escape chances as a function of the relevant parameters, such as translational and rotational speeds of the CAP, domain size, etc. We identified three regimes in the escape kinetics namely the noise-dominated regime, the optimal regime, and the chiral activity-dominated regime. In particular, the optimal regime is characterized by an escape scheme that involves a direct passage to the domain boundary at first and then a unidirectional drift along the boundary towards the exit. Furthermore, we propose a non-dimensionalization approach to optimize the escape performance across microorganisms with varying motile characteristics. Additionally, we explore the influence of the translational and rotational noise on the CAP’s escape kinetics.”

Posters

Joydeep Das

Nonlinearity-induced pattern formation in active fluids
Pattern formation is ubiquitous in nature. It is available everywhere from ripples of sands, hydrodynamical systems, chemical systems, biological systems, combustion theory and even in the structure of galaxies. In this work, I will be discussing the emergence of patterns in an active fluid medium and the appearance of various types of spatiotemporal structures like Chimera states.

Subhashree Subhrasmita Khuntia

Exploring auto-chemotactic random walk: Single and collective behavior
Active matter, comprises systems that are out of equilibrium driven at individual scale by their internal energy or their local environment. Auto-chemotaxis represent one such active process where each individual modifies the chemical field in their locality and this further drives the motion of the system. We studied the trajectory of a single particle where the dynamics is governed by its chemical environment and vice versa. The phase diagram in the deposition and the evaporation rate of the chemical shows a structural transition from an extended coil state to a collapsed globule state. We developed a mean field theory following Keller-Segel model for chemotaxis and this shows good agreement with the simulation results. Further we incorporate many particles in our system and observe emergent phenomena evolving from the indirect interaction among them via their local chemical environment.