About

Junior Research Fellow at Indian Institute of Science and Educational Research. A Particle Physics,Cosmology and Gravity Enthusiast, Blogger, Bug Hunter and a Dreamer. Currently I am working on boosted dark matter models. I am also interested in the application of Quantum Information theoretic tools in understanding the Quantum nature of Gravity.

Research Experiences

My first exposure to different research directions and open problems in physics was through the Summer Program National Initiative on Undergraduate Science (NIUS - Physics). I was one of the 30 students selected across the country to attend this program. The purpose of the program was to introduce us to (a) frontier research areas in physics from quantum computing to quantum gravity, (b) interesting phenomena/unsolved problems in the literature, (c) comprehension of scientific papers, and (d) problem-solving and independent thinking. This helped me inculcate the right scientific temper right from my freshman year and set the stage early for all the research activities I carried out later.

Effects of Non-Standard Interactions on Relic neutrinos

The standard model of cosmology predicts the existence of a Cosmic Neutrino Background (CνB), detecting which is extremely difficult because of the small momentum they have (10⁻⁴ eV ). But the idea of detecting these neutrinos by capturing them on β-decaying nuclei, a process with no energy threshold, has gained interest lately and the experiment PTOLEMY is based on these principles. Under the supervision of Prof. Ujjal K.Dey, the goal of the project was to see if neutrinos have new Beyond the Standard Model (BSM) interactions, how would this affect the relic neutrino detection rate in PTOLEMY-like detectors? We employed the effective Lagrangian approach and calculated the rate of neutrino capture on tritium in the presence of these NSI parameters. We performed a statistical analysis of the number of events in the presence and absence of NSI, obtained values for the BSM coefficients at 90% CL and used them to calculate the capture rate. I was in charge of all the calculations and numerical analysis done in this work. The paper is being submitted to JCAP.

Cosmic Ray Boosted Inelastic Dark Matter

This work was carried out under the supervision of Prof. Ujjal K.Dey. Motivated by the absence of a WIMP signal, the goal of the project is to probe sub-GeV dark matter in the boosted dark matter framework. In this framework, we are relying on subdominant DM populations with much larger velocities so that their scattering off detectors can induce energetic recoils. The goal of the project is two-fold. The first is to implement inelastic scattering of dark matter with cosmic ray electrons and see its detection prospects at the neutrino experiments. The inelastic scattering of DM with cosmic electrons has not been studied before. Through this work, we have improved the existing bounds on the scattering cross section for the DM mass between 1 keV to 1 GeV. The second goal is to implement those dark matter models (in the boosted framework) where the DM has interactions with the electrons at the tree level and can also couple with the protons at the one-loop level. Therefore, we hope that the upscattering of the DM is significantly higher because it is upscattered by both electrons and protons. We would like to see how this effect manifests in the Super-K detector. We have some new results and the project is currently in its second phase, and other than my supervisor I am solely responsible for the work.

Circuit Complexity in Z2 EEFT

This work was carried out under the supervision of Prof.Sayantan Choudhary and Prof.Radhakrishnan. A part of this work was submitted for the fulfillment of my Master’s thesis. Holographic complexity is important in the context of the ER=EPR paradox. In order to understand the holographic complexity, it becomes of utmost importance to understand the complexity in quantum field theory. The purpose of the thesis was to first understand Complexity in general for our familiar Quantum systems and then generalize it to Quantum Field Theory. we first calculated the complexity for a coupled harmonic oscillator and then generalized it to a lattice of N coupled harmonic oscillators. I was able to extend this work further under the guidance of Dr.Sayantan Choudhary, ICTS. Here, we calculated the circuit complexity for the interacting scalar fields, especially in the presence of ϕ⁴ , ϕ⁶ , ϕ⁸ interactions. The results were quite interesting, and finally, we wrote a paper based on these results (arXiv:2109.09759). The paper got accepted in Symmetry. My primary contributions were to calculate the analytic expression of the perturbed wave function in the presence of ϕ⁶ and ϕ⁸ interactions and to numerically evaluating the complexity functional in the presence of different interactions and in arbitrary dimensions.

Numerical Bootstrap methods for simple quantum systems

This work is carried out under the supervision of Prof.Sayantan Choudhary. Here we are trying to find out how we can use numerical bootstrapping techniques to obtain the spectrum and simple expectation values in theories involving large N matrix quantum mechanics, which is common in holographic theories. The project is in its initial stage. My role is to apply this numerical bootstrap methodology to a quantum system in the presence of a morse potential. I am currently writing Python code to do the same and understand previous efforts in this area.

Phase space distribution of DM in exponential growth scenario

The goal is to study the scenarios involving the semiproduction of DM by relaxing the assumption of thermal distribution for the dark sector particles. For this, we have to determine the phase space distribution of dark sector particles by solving the Boltzmann equation numerically.

For more details about our research, kindly check our publications.

Publications