University of Texas - Austin

## Talks by Steven Weinberg

## Ultraviolet Divergences in Cosmological Correlations

Steven Weinberg
University of Texas - Austin

A method is developed for dealing with ultraviolet divergences in calculations of cosmological correlations, which does not depend on dimensional regularization. An extended version of the WKB approximation is used to analyze the divergences in these calculations, and these divergences are controlled by the introduction of Pauli--Villars regulator fields. This approach is illustrated in the theory of a scalar field with arbitrary self-interactions in a fixed flat-space Robertson--Walker metric with arbitrary scale factor $a(t)$.

## Prospects for Asymptotic Safety

Steven Weinberg
University of Texas - Austin

## Quantum Mechanics from Gauge Theory

Steven Weinberg
University of Texas - Austin

## Steven Weinberg - The Origin of the Universe.

Steven Weinberg
University of Texas - Austin

origin, universe, Steve Weinberg, galaxies, geophysics, light waves, matter, supernova, hydrogen, helium, big bang, cosmic microradioation, cosmic background explorer