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S. Nadathur

2 articles · 30 co-authors · latest: 2026-05-20

Cosmic Ruler: Inflection Point Instead of Peak

After the Big Bang, sound waves left a rhythmic pattern in the distribution of galaxies — a 'standard ruler.' But over time, gravity blurs the sharp peak on the distance graph. Scientists discovered that the point of steepest slope on this graph hardly changes and serves as a more reliable tool. Ver
arXiv:2601.05967v1 · 2026-01-09

How the ripples of the early Universe tell of its birth

By simulating Euclid telescope observations, scientists showed that combining two analysis methods—coarse ripple measurement and fine asymmetry detection—nearly doubles accuracy. This will help test theories of the Universe's birth and likely spot traces of quantum jitters.
arXiv:2605.21436 · 2026-05-20