23rd International Conference From the Planck scale to the Electroweak scale (Planck 2021)

Session

String Phenomenology

30 Jun 2021, 12:00

14. Bootstrapping Cosmological Correlations

Daniel Baumann

30/06/2021, 12:00

Cosmology is famously an observational rather than an experimental science. No experimentalists were present in the early universe, and the birth and subsequent evolution of the universe cannot be repeated. Instead, we can only measure the spatial correlations between cosmological structures at late times. A central challenge of modern cosmology is to construct a consistent "history" of the...

15. SU(3)-Holonomy and SU(3)-Structure metrics from Machine Learning

Lara B. Anderson

30/06/2021, 12:50

The metric on the compact internal geometry of a string compacitification has long stood as an important missing piece in the study of low energy physics arising from string theory. I will review recent progress using machine learning to approximate Calabi-Yau and SU(3)-structure metrics, including for the first time their dependence. These methods are demonstrated for Calabi-Yau as well as...

13. Light Fermions and the Swampland

Irene Valenzuela

30/06/2021, 13:40

Quantum gravity can have important implications for Particle Physics and Cosmology. In this talk, I will describe the state-of-the-art and phenomenological implications of the AdS Distance conjecture and the Non-susy AdS Instability conjecture. In particular, we consider constraints on D-dimensional theories in Minkowski, dS and AdS backgrounds in the light of these swampland conjectures as...