Joint cosmology seminar at Tufts:

Tuesday, September 28, 2021, 2:30 pm
574 Boston Ave, Room 310
Tufts University
Refreshments at 2:00 outside the building, at the corner of Harvard St. and Boston Ave.

Coupled Early Dark Energy

Mark Trodden
University of Pennsylvania

Abstract:

I will describe how some of the fine-tuning problems of the early dark energy solution to the Hubble tension can be addressed using couplings to other fields already present in cosmology. I will discuss the formulation, the cosmology, and the constraints on such models.