Saurya Das Research

I am a theoretical physicist by training, and have worked in the areas of quantum gravity, black hole physics and thermodynamics and quantum information theory. My current research interests include:

Quantum gravity: phenomenology of quantum gravity (studying Planck scale signatures in low energy systems), singularity theorems and singularity resolution via quantum mechanics, quantum information science and its relation to the black hole information loss problem.

Cosmology: Problem of dark energy, singularity resolution, modified Newtonian dynamics (theory and experiment).

Research Highlights

  • Quantum gravity phenomenology : with collaborators E. C.. Vagenas, A. F. Ali, R. B. Mann and W. Chemissany showed that quantum gravity/Planck scale effects can show up in low energy quantum systems and experiments. 
  • LHC Black Holes : with collaborators R. Maartens and M. Cavaglia, showed that the effects of the generalized uncertainty principle can be significant on black holes that may be produced in high energy colliders such as the LHC.
  • Log corrections to black hole entropy : with collaborators R. K. Bhaduri and P. Majumdar, showed that thermodynamic fluctuations give rise to generic logarithmic corrections to black hole entropy. 
  • Conserved quantities in asymptotically anti-de Sitter spacetimes : with collaborators A. Ashtekar and R. B. Mann, proposed a precise prescription of computing conserved charges for asymptotically anti-de Sitter spacetimes in any dimensions. 
  • Entanglement entropy of horizons : with collaborators S. Shankaranarayanan and S. Sur, showed that corrections to the area law result for excited quantum field states, and that correlations between regions close to the horizon (and on either side of it) carries most of the entropy. 
  • Singularity theorems in gravity : with collaborator A. F. Ali, showed that the singularity theorems in gravity can be by-passed using quantum mechanics, thus avoiding spacetime singularities. Also showed that the classical limit a la Bohm can play an important role in quantum gravity.  

Publications: A link to my publications can be found in my bio and at the end of this page. 

Top cited: my publications which have been cited 100+ times include

1. Universality of Quantum Gravity CorrectionsSaurya Das, E. C. Vagenas,  Phys. Rev. Lett. 101 (2008) 221301 [arXiv:0810.5333 (hep-th)]. 

2. How classical are TeV-scale black holes?Marco Cavaglia, Saurya Das,  Class. & Quant. Grav. 21 (2004) 4511-4522 [arXiv:hep-th/0404050]. 

3. Will be Observe Black Holes in LHC?, Marco Cavaglia, Saurya Das, Roy Maartens, Class. & Quant. Grav. 20 (2003) L205-L212 [arXiv:hep-ph/0305223]. 

4. General Logarithmic Corrections to Black Hole EntropySaurya Das, Parthasarathi Majumdar, Rajat K. Bhaduri, Class. & Quant. Grav. 19 (2002) 2355-2368 [arXiv:hep-th/0111001].

5. Asymptotically Anti-de Sitter Space-times: Conserved QuantitiesAbhay Ashtekar, Saurya Das, Class. & Quant. Grav. 17 (2000) L17-L30 [arXiv:hep-th/9911230].


The following papers received Honorable Mention in the Gravity Research Foundation Essay Competitions

2014: Cosmic coincidence or massive graviton, Saurya Das, arXiv: 1405.4011.


2007: Gravitational anomalies: a recipe for Hawking radiation, Saurya Das, Sean P. Robinson, Elias C. Vagenas, Int. J. Mod. Phys. D17 (2008) 533-539 [arXiv:0705.2233 (hep-th)].

2001: Can Black Holes Decay into Naked Singularities?Saurya Das, Jack Gegenberg, Viqar Husain, Int. J. Mod. Phys. D10 (2001) 807-810 [arXiv:gr-qc/0107072]


Citations summary