I am...

I love to stay where grand theories of Physics and the prowess of computation meet. Simulation and visualization pique my interest. My current focus is on gravitational waves, numerical relativity and compact objects in general.

Education

MSc in Physics

2019 - 2021
University of Calcutta

Special: Quantum Field Theory, Particle Physics, Astrophysics and Cosmology
Additional: Applied Mathematics, Statistics
First Class, 68.2%

BSc (Hons) in Physics

2016 - 2019
St. Xavier's College, Kolkata

Elective: Nonlinear Dynamics
Ancillaries: Mathematics, Computer Science
First Class, CGPA 7.98/10

  • Dissertation: Study of the Microphysical Processes of Cloud Formation

ISC: Higher Secondary (Std XII)

2014 - 2016
St. Patrick's School, Asansol

Marks: 97.25%

Publications

A. Tarafdar and S. Bhattacharjee
In Preparation, arXiv preprint [gr-qc]

Experiences

Dynamical Black Hole Horizons

current
Dr. Srijit Bhattacharjee (IIIT Allahabad)
  • Determining apparent horizons for different dynamical spacetimes and understanding their importance in different fields.
  • Finding an analytical expression for an event horizon candidate in slowly evolving spacetimes.
  • Studied the 2+2 foliation of spacetime and its applications in this context.

Compact Objects, Perturbation and Ringdown

Nov 2021 - Apr 2022
Dr. Srijit Bhattacharjee (IIIT Allahabad)
  • Studied and applied the time integration method (by Gundlach et al) to the scattering equation derived from the Klein-Gordon field.
  • Solved for the metric of boson stars (BS).

Initial Value Formulation of General Relativity

May - Jul 2021
Dr. Srijit Bhattacharjee (IIIT Allahabad)
  • Derived the ADM-York equations by 3+1 foliation of spacetime in GR
  • Investigated the role of constraints in the system
  • Constructed Bowen-York puncture initial data by conformal decomposition of the constraint equations
  • Solved the equations numerically for static, rotating and boosted BHs and discussed results
  • Report available here

Study of the Microphysical Processes of Cloud Formation

Nov 2018 - Apr 2019
Dr. Tapati Datta (St. Xavier's College, Kolkata)

This reading project involved the study of the key thermodynamical processes that lead to cloud formation from aerosols that act as Cloud Condensation Nuclei (CCNs). It also involved a proof-of-concept simulation of the equations modelling droplet growth.

Select Talks / Posters

Presentation of report - Construction of Black Hole Initial Data

As part of VRITIKA Research Internship at IIIT Allahabad (Jul 2021)

Talk on Roads to the Planck scale

About the possible breakdown of classical gravity at Planck scale at C.K. Majumdar Memorial Workshop on Physics, SNBNCBS, Kolkata (Jun 2019)

BSc dissertation presentation - Study of the Microphysical Processes of Cloud Formation

St. Xavier’s College, Kolkata (Apr 2019)

Projects

showcase-physics - Simple animations and visualizations: fractals, fourier art, chaotic pendulums.

Select Workshops / Seminars

Numerical Relativity Community Summer School, 2022

8 - 12 Aug 2022
ICERM, Brown University (virtual)

North American Einstein Toolkit School, 2022

13 - 17 Jun 2022
University of Idaho (virtual)

Testing Aspects of General Relativity

11 - 14 Mar 2022
IIT Gandhinagar, IIIT Allahabad, ULeth (virtual)

HPC for Astronomy and Astrophysics

20 - 23 Sept 2021
SKA India Consortium and IIT Kharagpur (virtual)

International Webinar on Machine Learning in Physics

29 Aug 2020
West Bengal State University (virtual)

C.K. Majumdar Memorial Workshop on Physics

May - Jun 2019
IAPT at S.N. Bose National Centre for Basic Sciences, Kolkata
  • Paper presentation: “Roads to the Planck scale”

Activities

Editorial team of Onumonoshko, a science magazine meant for all

Curated articles, coordinated editing process and designed layout
Published at International Book Fair 2022, Kolkata

Organizing committee member of Spectrum (2018), annual seminar of Dept. of Physics, St. Xavier’s College, Kolkata

Planning events, designing and supervising event committees

Student Editor-in-chief of Horizon (2018 ed), annual departmental magazine of Dept. of Physics, St. Xavier’s College, Kolkata