Speaker
Tina Kahniashvili
(Carnegie Mellon University (USA) & Ilia State University (Georgia))
Description
I will overview the main characteristics of primordial helical fields. I will discuss the (nearby) scale invariant helical magnetic fields generated during inflation. It will be shown that if magnetic helicity of such fields is measured, it can be used to determine the beginning of inflation. Upper bounds on magnetic helicity can be used to derive constraints on the minimal duration of inflation. Observational constraints on magnetic helicity will be addressed
Summary
This talk address the primordial helical magnetic field generation, evolution, and signatures.
Author
Tina Kahniashvili
(Carnegie Mellon University (USA) & Ilia State University (Georgia))
Co-authors
Alexander Tevzadze
(Tbilisi State University (Georgia))
Axel Brandenburg
(University of Colorado Boulder (USA) & NORDITA (Sweden))
Ruth Durrer
(Geneva University (Switzerland))
Winston Yin
(Carnegie Mellon University (USA))
