Speaker
Yuhsin Tsai
(University of Maryland)
Description
Phase transitions in the early universe can readily create an observable stochastic gravitational wave background. I will argue that such a background necessarily contains anisotropies analogous to those of the cosmic microwave background (CMB) of photons, and that these too may be within reach of proposed gravitational wave detectors. Correlations within the gravitational wave anisotropies and their cross-correlations with the CMB can provide new insights into the mechanism underlying primordial fluctuations, such as multi-field inflation, as well as reveal the existence of non-standard ``hidden sectors" of particle physics in earlier eras.
Author
Yuhsin Tsai
(University of Maryland)
Co-authors
Michael Geller
(University of Maryland)
Prof.
Anson Hook
(University of Maryland)
Prof.
Raman Sundrum
(University of Maryland)
