47 citations
- Suratna Das2 profiles8 · h 15
- Dipankar Bhattacharya2 profiles7 · h 4
- S. M. Bhattacharjee7 · h 18
- V. Bhalerao4 profiles7 · h 32
- D. Bhattacharya3 profiles6 · h 29
- G. Dewangan6 · h 26
- K. Subramanian6 · h 39
- S. Vadawale2 profiles5 · h 24
- A. A. Nizami4 · h 12
- Somak Raychaudhury2 profiles4 · h 35
- Umang Kumar4 · h 2
- Aritra Das3 · h 1
- Inter-University Centre for Astronomy and AstrophysicsIN23 papers
- Indian Institute of Technology BombayIN8 papers
- Kavli Institute for Particle Astrophysics and CosmologyUS7 papers
- Physical Research LaboratoryIN7 papers
- Tata Institute of Fundamental ResearchIN7 papers
- Stanford UniversityUS5 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Indian Institute of AstrophysicsIN4 papers
- Indian Institute of Technology KanpurIN4 papers
- Indian Institute of Technology KharagpurIN4 papers
- Goddard Space Flight CenterUS3 papers
- Indian Institute of Technology IndoreIN3 papers
12 papers · 1 filter
SWIM: Stochastic Warm Inflation Module to generate and analyse Warm Inflationary power spectrum
Umang Kumar, Suratna Das
Numerical analysis to determine the form of the scalar power spectrum in Warm Inflationary paradigm is inevitable. One further needs numerical techniques to analyse any Warm Inflat…
Bondi-Hoyle-Lyttleton accretion onto ultra dense dark matter halos and direct collapse black holes
Kandaswamy Subramanian, Bikram Phookun
We suggest a formation scenario of black holes with intermediate mass , by post recombination Bondi-Hoyle-Lyttleton accretion into ultra dense dark matter halos…
Witten-O'Raifeartaigh potential revisited in the context of Warm Inflation
Suratna Das, Umang Kumar, Swagat S. Mishra +1
Warm Inflation is a scenario in which the inflaton field dissipates its energy during inflation to maintain a subdominant constant radiation bath. Two of its remarkable features ar…
Resurrecting Vanilla Power Law Inflation with the aid of Continuous Spontaneous Localization in the ACT era
Suratna Das
The Vanilla Power Law Inflation is plagued with two severe drawbacks, the one being the issue of graceful exit, and the other being its compatibility with the existing data. There'…
Dark Energy Survey Year 3 results: CDM cosmology from simulation-based inference with persistent homology on the sphere
J. Prat, M. Gatti, C. Doux +94
We present cosmological constraints from Dark Energy Survey Year 3 (DES Y3) weak lensing data using persistent homology, a topological data analysis technique that tracks how featu…
Lattice simulations of axion-U(1) inflation: gravitational waves, magnetic fields, and scalar statistics
Ramkishor Sharma, Axel Brandenburg, Kandaswamy Subramanian +1
We numerically study axion-U(1) inflation, focusing on the regime where the coupling between axions and gauge fields results in significant backreaction from the amplified gauge fi…