Welcome to my home page!

This site contains resources and information created by me about the projects on the Geometry of Dynamical Horizons and the Physics of binary black hole mergers. 

This site was originally built by me for internal bookkeeping purposes, so some items may be inaccessible.

Please visit Resources for an account of numerical codes developed for use in the analysis of dynamical horizons.

Also, please visit the Projects page and follow clickable links to get an overview of some of the projects.

Here is a link to the visualization of tidal deformation of the horizon geometry of black holes. 

Positions held

1. 2023 - Present. Post-Doctoral Fellow with Dr. Prayush Kumar, International Centre for Theoretical Sciences - Tata Institute of Fundamental Research (ICTS-TIFR), Bengaluru, India. 

2. 2022-2023. Visiting Student with Dr. Prayush Kumar, International Centre for Theoretical Sciences - Tata Institute of Fundamental Research (ICTS-TIFR), Bengaluru, India. 

3. 2016 - 2022. Ph.D Researcher and Shyama Prasad Mukherjee Fellow with Prof. Sukanta Bose, Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India .

1. News from Horizons in Binary Black Hole Mergers

     Vaishak Prasad, Anshu Gupta, Sukanta Bose, Badri Krishnan, and Erik Schnetter.

     Published 16 September 2020. Phys.Rev.Lett. 125, 121101. e-print: arXiv:2003.06215.

2. The Shear at the Common Dynamical Horizon in Binary Black Hole Mergers and its Imprint in their Gravitational Radiation.

     Vaishak Prasad. To be submitted. pre-print: arXiv:2312.01136.

3. Tidal deformation of dynamical horizons in binary black hole mergers and its imprint on gravitational radiation

     Vaishak Prasad. Published 16 February 2024. Phys.Rev.D 109, 044033. Based on arXiv:2109.01193.

4. Tidal deformation of dynamical horizons in binary black hole mergers.

     Vaishak Prasad, Anshu Gupta, Sukanta Bose, Badri Krishnan.  

      Published 9 February 2022. Phys.Rev.D 105, 044019. e-print: arXiv:2106.02595.

5. Closed timelike curves and energy conditions in regular spacetimes. 

    Sashideep Gutti, Shailesh Kulkarni, Vaishak Prasad (equal contribution)

    Published 15 December 2022. Eur.Phys.J.C (2022) 82: 1136. e-print: arXiv:2108.04117.

6. The Chronology Protection Problem in modified Kerr-Newman space-times.

     Vaishak Prasad, Rahul Srinivasan, Sashideep Gutti. 

     Published 14 January 2019. Phys.Rev.D 99, 024023. e-print: arXiv:1803.06666.

Awards, Achievements and Honours

1. Shyama Prasad Mukherjee Fellow, CSIR, Govt. of India  (2018 - 2022) (NET All India Rank 4)

2. PhD Fellowship at Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India, 2016 (accepted)

3. PhD Fellowship at Tata Institute of Fundamental Research (TIFR), Mumbai, India, 2016 (declined)

4. PhD Fellowship at Indian Institute of Science (IISc), Bengaluru, India, 2016 (declined)

5. Secured All India Rank 8, Joint Entrance Screening Test (JEST), 2016

6. Fellow, Kishore Vaigyanik Protsahan Yojana (KVPY), Indian Academy of Sciences (2013 - 16)

7. G.N.Ramachandran Fellowship for Young Promising Researchers, Summer Program at Indian Institute of Technology, Madras (IITM), Chennai, India (Summer 2015)

8. 94th percentile, Physics GRE (990), 2015

9. Secured Rank 2132, All India Engineering Entrance Examination (AIEEE), 2012

10. Secured Rank 7994, Indian Institute of Technology - Joint Entrance Examination (IIT-JEE)