My interests Publications Codes
Popular
Technical



Dr. V. Sreenath

Assistant Professor
Department of Physics
National Institute of Technology Karnataka





Contact details:

Post:       Department of Physics, National Institute of Technology Karnataka,
                NH 66, Srinivasnagar, Surathkal, Mangaluru, Karnataka 575025, India.
E-mail:   sreenath AT nitk.edu.in
Phone:   +91-824-247-3276
ORCID:   ORCID iD iconorcid.org/0000-0001-8007-7427




Last modified on 02 October 2024.

About me

I am presently an assistant professor at National Institute of Technology Karnataka. I am a cosmologist by training and my work is focused on understanding various aspects of the origin and evolution of the universe.


Academic history :
(For CV, click here.)

Teaching

At National Institute of Technology Karnataka, I have taught / are teaching the following courses:

My research interests

My research is focused on investigating various primordial scenarios such as inflation, loop quantum cosmology and other bouncing scenarios. I am primarily interested in studying perturbations generated in these scenarios and investigating imprints of these perturbations in various observables. My Ph.D. thesis was titled "Computation and characteristics of inflationary three-point functions".

Topics of my interest include:

I am also interested in various aspects of structure formation and the possibility of dark matter being a Bose-Einstein condensate.

Publications and pre-prints

My publications and preprints, in the reverse chronological order, is given below. They can also be found in arXiv, iNSPIRE and ORCiD.

  1. Roshna K and V. Sreenath, Viability of loop quantum cosmology at the level of bispectrum, Submitted to the Proceedings of the Seventeenth Marcel Grossmann Meeting held at 'Gabriele d'Annunzio' University, Pescara, Italy from 7 - 12 July, 2024 [arXiv:2410.00614 [astro-ph.CO]].
  2. Roshna K and V. Sreenath, Estimation of imprints of the bounce in loop quantum cosmology on the bispectra of cosmic microwave background, JCAP 08, 014 (2023) [arXiv:2301.05406 [astro-ph.CO]].
  3. I. Agullo, D. Kranas and V. Sreenath, Anomalies in the Cosmic Microwave Background and their Non-Gaussian Origin in Loop Quantum Cosmology, Front. Astron. Space Sci. 8:703845 (2021) [arXiv:2105.12993 [gr-qc]].
  4. A. Ashtekar, B. Gupt and V. Sreenath, Cosmic tango between the very small and the very large: Addressing CMB anomalies through Loop Quantum Cosmology, Front. Astron. Space Sci. 8:685288 (2021) [arXiv:2103.14568 [gr-qc]].
  5. I. Agullo, D. Kranas and V. Sreenath, Large scale anomalies in the CMB and non-Gaussianity in bouncing cosmologies, Class. Quantum Grav. 38, 065010 (2021) [arXiv:2006.09605 [astro-ph.CO]].
  6. I. Agullo, J. Olmedo and V. Sreenath, xAct Implementation of the Theory of Cosmological Perturbation in Bianchi I Spacetimes , Mathematics 2020, 8(2), 290 [arXiv:2006.03397 [gr-qc]].
  7. I. Agullo, J. Olmedo and V. Sreenath, Observational consequences of Bianchi I spacetimes in loop quantum cosmology, Phys. Rev. D 102, 043523 (2020) [arXiv:2006.01883 [gr-qc]].
  8. I. Agullo, D. Kranas and V. Sreenath, Anomalies in the CMB from a cosmic bounce, General Relativity and Gravitation 53, 17 (2021) [arXiv:2005.01796 [astro-ph.CO]].
  9. I. Agullo, J. Olmedo and V. Sreenath, Hamiltonian theory of classical and quantum gauge invariant perturbations in Bianchi I spacetimes, Phys. Rev. D 101, 123531 (2020) [arXiv:2003.08428 [gr-qc]].
  10. I. Agullo, J. Olmedo and V. Sreenath, Predictions for the CMB from an anisotropic quantum bounce, Phys. Rev. Lett. 124, 251301 (2020) [arXiv:2003.02304 [gr-qc]].
  11. A. Ashtekar, B. Gupt, D. Jeong and V. Sreenath, Alleviating the tension in CMB using Planck-scale Physics, Phys. Rev. Lett. 125, 051302 (2020) [arXiv:2001.11689 [astro-ph.CO]].
  12. V. Sreenath, I. Agullo and B. Bolliet, Computation of non-Gaussianity in loop quantum cosmology, [arXiv:1904.01075 [gr-qc]].
  13. V. Sreenath, Spherical collapse of fuzzy dark matter, Phys. Rev. D 99, 043540 (2019) [arXiv:1808.08219 [astro-ph.CO]].
  14. I. Agullo, B. Bolliet and V. Sreenath, Non-Gaussianity in Loop Quantum Cosmology, Phys. Rev. D 97, 066021 (2018) [arXiv:1712.08148 [gr-qc]].
  15. D. Jaffino Stargen, V. Sreenath and L. Sriramkumar, Quantum-to-classical transition and imprints of continuous spontaneous localization in classical bouncing universes , IJMPD 30, 07, 2150049(2021) [arXiv:1605.07311 [gr-qc]].
  16. D. Chowdhury, V. Sreenath and L. Sriramkumar, The scalar-scalar-tensor inflationary three-point function in the axion monodromy model, JCAP 1611, 041 (2016) [arXiv:1605.05292 [astro-ph.CO]].
  17. D. Chowdhury, V. Sreenath and L. Sriramkumar, The tensor bi-spectrum in a matter bounce, JCAP 1511, 002 (2015) [arXiv:1506.06475 [astro-ph.CO]].
  18. V. Sreenath, D. K. Hazra and L. Sriramkumar, On the scalar consistency relation away from slow roll, JCAP 1502, 029 (2015) [arXiv:1410.0252 [astro-ph.CO]].
  19. V. Sreenath and L. Sriramkumar, Examining the consistency relations describing the three-point functions involving tensors, JCAP 1410, 021 (2014) [arXiv:1406.1609 [astro-ph.CO]].
  20. V. Sreenath, R. Tibrewala and L. Sriramkumar, Numerical evaluation of the three-point scalar-tensor cross-correlations and the tensor bi-spectrum, JCAP 1312, 037 (2013) [arXiv:1309.7169 [astro-ph.CO]].
  21. G. Santhosh, V. Sreenath, A. Lakshminarayan and R. Narayanan, Localized zero-energy modes in the Kitaev model with vacancy disorder, Phys. Rev. B 85, 054204 (2012) [arXiv:1106.2385 [cond-mat.str-el]].

Codes

As part of my research, I have contributed to the development of the following codes:

Technical resources

Here, I provide links to some of the resources that I find useful.


Repositories:

Cosmological Codes:

Software tutorials:

Books

Here is a list of some books that I enjoyed reading: