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 08 September 2023.

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 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, 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]].
  2. 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]].
  3. 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]].
  4. 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]].
  5. 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]].
  6. 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]].
  7. 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]].
  8. 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]].
  9. 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]].
  10. 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]].
  11. V. Sreenath, I. Agullo and B. Bolliet, Computation of non-Gaussianity in loop quantum cosmology, [arXiv:1904.01075 [gr-qc]].
  12. V. Sreenath, Spherical collapse of fuzzy dark matter, Phys. Rev. D 99, 043540 (2019) [arXiv:1808.08219 [astro-ph.CO]].
  13. I. Agullo, B. Bolliet and V. Sreenath, Non-Gaussianity in Loop Quantum Cosmology, Phys. Rev. D 97, 066021 (2018) [arXiv:1712.08148 [gr-qc]].
  14. 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]].
  15. 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]].
  16. 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]].
  17. 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]].
  18. 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]].
  19. 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]].
  20. 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: