Faculty Details

Areas of Interest

• Statistical Physics
• Soft Matter
• Fluid Dynamics
• Bayesian Statistics
• Active Matter

Current Research

The broad research interests of our group are in the field of theoretical soft condensed matter physics. With this principal theme, we study problems in statistical mechanics, fluid mechanics, computational physics, biophysics, and Bayesian statistics. In particular, the current focus is on studying the physics of soft, active, and living materials.

Students

Current PhD Students

• PH22D800    ARVIN GOPAL SUBRAMANIAM
• PH20D205    KINGSHUK PANJA
• PH22D091    MAYURAKSHI DEB
• PH22D084    EJAZ ASHRAF

Recent Publications

• Triple-line dynamics of a soft colloid-laden drop on a hydrophobic surface . M Jose, R Singh, and D Satapathy. Soft Matter. 19. 1803-1812.
  DOI: 10.1039/D2SM01486F. 2023.
• Emergent rigidity in chemically self-interacting flexible active polymers . M Kumar, A Murali, A G Subramaniam, R Singh, S Thutupalli. arXiv: https://arxiv.org/abs/2303.10742 2023.
• Depletion zone in two-dimensional deposits of soft microgel particles . M Jose, R Singh, and D Satapathy. J. Colloid Interface Sci. 642. 364-372.
  DOI: 10.1016/j.jcis.2023.03.076. 2023.
• Stokes traction on an active particle . G Turk, R Singh, and R Adhikari. Phys. Rev. E. 106. 014601-014612.
  DOI: 10.1103/PhysRevE.106.014601. arXiv: https://arxiv.org/abs/2109.02581 2022.
• A hydro-thermophoretic trap for microparticles near a gold-coated substrate . G Nalupurackal, M Gunaseelan, S Roy, M Lokesh, S Kumar, R Vaippully, R Singh, and B Roy. Soft Matter. 18. 6825-6835.
  DOI: 10.1039/D2SM00627H . 2022.
• Efficient Bayesian inference of fully stochastic epidemiological models with applications to COVID-19. YI Li et al.. R. Soc. Open Sci. 8. 211065 .
  DOI: 10.1098/rsos.211065. 2021.
• Controlled optofluidic crystallization of colloids tethered at interfaces. A Caciagli, R Singh, D Joshi, R Adhikari, and E Eiser. Phys. Rev. Lett. 125. 68001.
  DOI: 10.1103/PhysRevLett.125.068001. 2020.
• PyStokes: phoresis and Stokesian hydrodynamics in Python. R Singh, and R Adhikari. J. Open Source Software. 5. 2318.
  DOI: 10.21105/joss.02318. 2020.
• Self-propulsion of active droplets without liquid-crystalline order. R Singh, E Tjhung, and ME Cates. Phys. Rev. Research. 2. 32024.
  DOI: 10.1103/PhysRevResearch.2.032024. 2020.
• Ritz method for transition paths and quasipotentials of rare diffusive events. L Kikuchi, R Singh, ME Cates, and R Adhikari. Phys. Rev. Research. 2. 33208.
  DOI: 10.1103/PhysRevResearch.2.033208. 2020.
• Periodic orbits of active particles induced by hydrodynamic monopoles. A Bolitho, R Singh, and R Adhikari. Phys. Rev. Lett. 124. 88003.
  DOI: 10.1103/PhysRevLett.124.088003. 2020.
• Hydrodynamically interrupted droplet growth in scalar active matter. R Singh, and ME Cates. Phys. Rev. Lett. 123. 148005.
  DOI: 10.1103/PhysRevLett.123.148005. 2019.
• Competing chemical and hydrodynamic interactions in autophoretic colloidal suspensions. R Singh, R Adhikari, and ME Cates. J. Chem. Phys. 151. 44901.
  DOI: 10.1063/1.5090179. 2019.
• Electrohydrodynamic Assembly of Ambient Ion-Derived Nanoparticles to Nanosheets at Liquid Surfaces. D Sarkar, R Singh, A Som, CK Manju, MA Ganayee, R Adhikari, and T Pradeep. J. Phys. Chem. C. 122. 17777.
  DOI: 10.1021/acs.jpcc.8b04169. 2018.
• Flow-induced phase separation of active particles is controlled by boundary conditions. S Thutupalli, D Geyer, R Singh, R Adhikari, and HA Stone. Proc. Natl. Acad. Sci. 115. 5403.
  DOI: 10.1073/pnas.1718807115. 2018.
• Fast Bayesian inference of the multivariate Ornstein-Uhlenbeck process. R Singh, D Ghosh, and R Adhikari. Phys. Rev. E. 98. 12136.
  DOI: 10.1103/PhysRevE.98.012136. 2018.
• Generalized Stokes laws for active colloids and their applications. R Singh, and R Adhikari. J. Phys. Commun. 2. 25025.
  DOI: 10.1088/2399-6528/aaab0d. 2018.
• Direct verification of the fluctuation-dissipation relation in viscously coupled oscillators. S Paul, A Laskar, R Singh, B Roy, R Adhikari, and A Banerjee. Phys. Rev. E. 96. 50102.
  DOI: 10.1103/PhysRevE.96.050102. 2017.
• Fluctuating hydrodynamics and the Brownian motion of an active colloid near a wall. R Singh, and R Adhikari. Eur. J. Comp. Mech. 26. 78.
  DOI: 10.1080/17797179.2017.1294829. 2017.
• Fast Bayesian inference of optical trap stiffness and particle diffusion. S Bera, S Paul, R Singh, D Ghosh, A Kundu, A Banerjee, and R Adhikari. Sci. Rep. 7. 41638 .
  DOI: 10.1038/srep41638. 2017.
• Universal hydrodynamic mechanisms for crystallization in active colloidal suspensions. R Singh, and R Adhikari. Phys. Rev. Lett. 117. 228002.
  DOI: 10.1103/PhysRevLett.117.228002. 2016.
• Many-body microhydrodynamics of colloidal particles with active boundary layers. R Singh, S Ghose, and R Adhikari. J. Stat. Mech. 2015. P06017.
  DOI: 10.1088/1742-5468/2015/06/P06017. 2015.
• Phase-plane analysis of driven multi-lane exclusion models. V Yadav, R Singh, and S Mukherji. J. Stat. Mech. 2012 . P04004.
  DOI: 10.1088/1742-5468/2012/04/P04004. 2012.

Teaching

• 2022 :  (Jan - May) - PH1020 - Physics II ; (Jul - Nov) PH1010 Physics I
• 2023 :  (Jan - May) - PH1020 - Physics II