Beyond Scalar Field Cosmology
Seminar
QUEST Center event
No
Speaker
Ido Ben Dayan, Ariel / University of California at Berkeley
Date
13/12/2021 - 20:30 - 19:00Add to Calendar
2021-12-13 19:00:00
2021-12-13 20:30:00
Beyond Scalar Field Cosmology
The Concordance Model of Cosmology describes the Universe on large scales and its parameters have been measured to an accuracy of a percent.
I will discuss current challenges of the model and attempts to address them.
Emphasis will be given to the role emergent collective phenomena beyond a single scalar field may have in the early and late Universe.
As an application I will show that the thermal average of "unparticles" can avoid the Big Bang singularity, act as a Dark Energy model and reduce the Hubble tension.
Note: This seminar will be given *only* on Zoom (meeting id 9290951953), from sunny California.
Zoom: https://zoom.us/j/9290951953
המחלקה לפיזיקה
physics.dept@mail.biu.ac.il
Asia/Jerusalem
public
Place
Zoom: https://zoom.us/j/9290951953
Abstract
The Concordance Model of Cosmology describes the Universe on large scales and its parameters have been measured to an accuracy of a percent.
I will discuss current challenges of the model and attempts to address them.
Emphasis will be given to the role emergent collective phenomena beyond a single scalar field may have in the early and late Universe.
As an application I will show that the thermal average of "unparticles" can avoid the Big Bang singularity, act as a Dark Energy model and reduce the Hubble tension.
Note: This seminar will be given *only* on Zoom (meeting id 9290951953), from sunny California.
תאריך עדכון אחרון : 10/12/2021
