Faculty Details

Areas of Interest

• Classical and Quantum Gravity (see personal home page for more details)

Current Research

Mesoscopic domain of quantum spacetime.
Gravitational quantum physics.
Semiclassical Gravity and Black Hole physics.
Statistical mechanics in curved spacetime.

(see personal home page for more details)

Students

Current PhD Students

• PH    Hari K
• PH    Raghvendra Singh (IMSc)
• PH    Mayank Vashishtha

Recent Publications

• Limits of a non-local quantum spacetime . Dawood Kothawala. Honorable Mention in the Gravity Research Foundation Essay Competition, 2023 . arXiv: https://arxiv.org/abs/2305.09265 2305.09265 2023.
• Effect of tidal curvature on dynamics of accelerated probes. Hari K, Dawood Kothawala. Phys. Rev. D. 104.
  DOI: 10.1103/PhysRevD.104.064032. 2021.
• Geometric aspects of covariant Wick rotation. Raghvendra Singh, Dawood Kothawala. Eur. Phys. J. C 83, 194 (2023).
  DOI: 10.1140/epjc/s10052-023-11340-1. arXiv:2010.01822 2021.
• Varying without varying: Reparameterisations, Diffeomorphisms, General Covariance, Lie derivatives, and all that.. Dawood Kothawala. Eur. J. Phys. 42, 055601 (2021). arXiv:2004.04178 2020.
• BGV theorem, geodesic deviation, and quantum fluctuations. Dawood Kothawala. Classical and Quantum Gravity. 38 . 045006.
  DOI: 10.1088/1361-6382/abd146. 2020.
• Normal coordinates based on curved tangent space. Hari K, Dawood Kothawala. Phys. Rev. D. 101. 124066. 2020.
• Raychaudhuri equation with zero point length. Sumanta Chakraborty, Dawood Kothawala, Alessandro Pesci. Physics Letters B. 797 . 134877.
  DOI: 10.1016/j.physletb.2019.134877. 2019.
• Action and Observer dependence in Euclidean quantum gravity. Dawood Kothawala. Classical and Quantum Gravity (Letter). 35 . 03LT01.
  DOI: 10.1088/1361-6382/aa9fdf. 2018.
• Euclidean Action and the Einstein tensor. Dawood Kothawala. Physical Review D. 97 . 124062.
  DOI: 10.1103/PhysRevD.97.124062. 2018.
• Hawking radiation in Non local field theories. Nirmalya Kajuri, Dawood Kothawala. preprint: arXiv:1806.10345. 2018.
• Moving mirrors and the fluctuation-dissipation theorem. D. Jaffino Stargen, Dawood Kothawala, L. Sriramkumar. Physical Review D. 94 . 025040.
  DOI: 10.1103/PhysRevD.94.025040. 2016.
• Accelerated Observers, Thermal Entropy, and Spacetime Curvature. Dawood Kothawala. Gravity and the Quantum. Fundamental Theories of Physics.. 187 . 145.
  DOI: 10.1007/978-3-319-51700-1_12. 2016.
• Vacuum energy in freely falling frames and spacetime curvature. Dawood Kothawala. preprint: arXiv:1612.08148. 2016.
• Spacetime with zero point length is two-dimensional at the Planck scale. T. Padmanabhan, Sumanta Chakraborty, Dawood Kothawala . General Relativity and Gravitation (Letter). 48 . 55.
  DOI: 10.1007/s10714-016-2053-2. 2016.
• Small scale structure of spacetime: van Vleck determinant and equi-geodesic surfaces. D. Jaffino Stargen, Dawood Kothawala. Physical Review D. 92 . 024046.
  DOI: 10.1103/PhysRevD.92.024046. 2015.
• Entropy density of spacetime from the zero point length. Dawood Kothawala, T. Padmanabhan. Physics Letters B. 748 . 67-69.
  DOI: 10.1016/j.physletb.2015.06.066. 2015.
• Intrinsic and Extrinsic curvatures in Finsleresque spaces. Dawood Kothawala. General Relativity and Gravitation. 46. 1836 .
  DOI: 10.1007/s10714-014-1836-6. 2014.
• Entropy density of spacetime as a relic from quantum gravity. Dawood Kothawala, T. Padmanabhan. Physical Review D. 90 .
  DOI: 10.1103/PhysRevD.90.124060. 2014.
• Minimal Length and Small Scale Structure of Spacetime. Dawood Kothawala. Physical Review D. 88 .
  DOI: 10.1103/PhysRevD.88.104029. 2013.
• Box of Ideal Gas in Free Fall. Dawood Kothawala. Physics Letters B. 720 . 410-413.
  DOI: 10.1016/j.physletb.2013.02.035. 2013.
• Lanczos-Lovelock models of gravity. T. Padmanabhan, Dawood Kothawala. Physics Reports. 531 . 115.
  DOI: 10.1016/j.physrep.2013.05.007. 2013.
• Holographic repulsion and confinement in gauge theory. Viqar Husain, Dawood Kothawala. Classical and Quantum Gravity [Fast Track Communication]. 30 .
  DOI: 10.1088/0264-9381/30/3/032001. 2013.
• Generalized uncertainty principles and quantum field theory. Viqar Husain, Dawood Kothawala, Sanjeev S. Seahra. Physical Review D. 87 .
  DOI: 10.1103/PhysRevD.87.025014. 2013.
• Membrane Paradigm and Horizon Thermodynamics in Lanczos-Lovelock gravity. Sanved Kolekar, Dawood Kothawala. Journal of High Energy Physics.
  DOI: 10.1007/JHEP02(2012)006. 2012.
• Two Aspects of Black hole entropy in Lanczos-Lovelock models of gravity. Sanved Kolekar, Dawood Kothawala, T. Padmanabhan. Physical Review D. 85 .
  DOI: 10.1103/PhysRevD.85.064031. 2012.
• Duality of force laws and Conformal transformations. Dawood Kothawala. American Journal of Physics. 79 . 624.
  DOI: 10.1119/1.3553231. 2011.
• The thermodynamic structure of Einstein tensor. Dawood Kothawala. Physical Review D. 83 .
  DOI: 10.1103/PhysRevD.83.024026. 2011.
• Response of Unruh-DeWitt detector with time-dependent acceleration. Dawood Kothawala, T. Padmanabhan. Physics Letters B. 690 . 201.
  DOI: 10.1016/j.physletb.2010.05.026. 2010.
• Path integral duality modified propagators in spacetimes with constant curvature. Dawood Kothawala, L. Sriramkumar, S. Shankaranarayanan, T. Padmanabhan. Physical Review D. 80 .
  DOI: 10.1103/PhysRevD.80.044005. 2009.
• Thermodynamic structure of Lanczos-Lovelock field equations from near-horizon symmetries. Dawood Kothawala, T. Padmanabhan. Physical Review D. 79 .
  DOI: 10.1103/PhysRevD.79.104020. 2009.
• Quantum gravitational corrections to the stress-energy tensor around the rotating BTZ black hole. Dawood Kothawala, S. Shankaranarayanan, L. Sriramkumar. Journal of High Energy Physics.
  DOI: 10.1088/1126-6708/2008/09/095. 2008.
• Is gravitational entropy quantized ?. Dawood Kothawala, T. Padmanabhan, Sudipta Sarkar. Physical Review D. 78 .
  DOI: 10.1103/PhysRevD.78.104018. 2008.
• Radiating black hole solutions in arbitrary dimensions. Sushant Ghosh, Dawood Kothawala. General Relativity and Gravitation. 40 . 9-21.
  DOI: 10.1007/s10714-007-0511-6. 2008.
• Einstein's equations as a thermodynamic identity: The cases of stationary axisymmetric horizons and evolving spherically symmetric horizons. Dawood Kothawala, Sudipta Sarkar, T. Padmanabhan . Physics Letters B. 652 . 338-342.
  DOI: 10.1016/j.physletb.2007.07.021. 2007.
• Hawking radiation as tunneling for spherically symmetric black holes: A generalized treatment. Sudipta Sarkar, Dawood Kothawala. Physcis Letters B. 659 . 683-687.
  DOI: 10.1016/j.physletb.2007.11.056. 2007.
• Generating dynamical black hole solutions. Dawood Kothawala, Sushant Ghosh . Physical Review D. 70 .
  DOI: 10.1103/PhysRevD.70.104010. 2004.

Teaching

• 2017 :  (Jan - May) - PH1020 Physics II; (Jul - Nov) - PH1010 Physics I
• 2018 :  (Jan - May) - PH5870 General Relativity and Cosmology; (Jul - Nov) - PH5460 Classical Field Theory
• 2019 :  (Jan - May) - PH1030 Physics Laboratory I/ EP2210 Principles of Quantum Mechanics; (Jul - Nov) - EP2110 Introduction to Mathematical Physics
• 2020 :  (Jan - May) - PH1020 Physics II; (Jul - Nov) - PH1030 Physics Laboratory I/ PH5870 General Relativity and Cosmology
• 2021 :  (Jan - May) - PH5120 Physics Lab II (PG)/PH5875 Advanced General Relativity; (Jul - Nov) - PH1010 Physics I
• 2022 :  (Jan - May) - PH3520 Quantum Physics
• 2023 :  (Jan - May) - PH5120 Physics Lab II (PG) / PH5825 Quantum Physics