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Umang Kumar

4 papers hereh-index 216 citations6 works total

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author position
  • sole author1
  • first author1
  • middle author2

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • astro-ph.CO4

identity via Semantic Scholar / OpenAlex

works on
CMB data 1MCMC analysis 1numerical methods 1scalar power spectrum 1warm inflation 1

From the 1 of 4 linked papers with an AI index.

collaborators

4 papers

astro-ph.CO2026

SWIM: Stochastic Warm Inflation Module to generate and analyse Warm Inflationary power spectrum

Umang Kumar, Suratna Das

The paper introduces SWIM, a C++/Python software package that numerically solves stochastic perturbation equations in warm inflation to generate scalar power spectra and integrates…

astro-ph.CO2026

DSWIM:Efficient and Stable Deterministic Computation of Warm Inflation Perturbations

Umang Kumar

Warm inflation perturbations are sourced by both thermal and quantum fluctuations and are commonly computed through stochastic realizations of the perturbation equations, as implem…

astro-ph.CO2026

Dark Matter as an Inflationary Relic in Warm Inflation

Swagat S. Mishra, Umang Kumar, Suratna Das +1

Warm inflation is usually expected to completely deplete the inflaton condensate by dissipating its energy into radiation. We show that this expectation fails in a simple and obser…

astro-ph.CO2026

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…

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