Minimalism in modified gravity
APA
Mukohyama, S. (2019). Minimalism in modified gravity. Perimeter Institute. https://pirsa.org/19060040
MLA
Mukohyama, Shinji. Minimalism in modified gravity. Perimeter Institute, Jun. 25, 2019, https://pirsa.org/19060040
BibTex
@misc{ pirsa_PIRSA:19060040, doi = {10.48660/19060040}, url = {https://pirsa.org/19060040}, author = {Mukohyama, Shinji}, keywords = {Cosmology}, language = {en}, title = {Minimalism in modified gravity}, publisher = {Perimeter Institute}, year = {2019}, month = {jun}, note = {PIRSA:19060040 see, \url{https://pirsa.org}} }
Shinji Mukohyama Yukawa Institute for Theoretical Physics
Collection
Talk Type
Scientific Series
Subject
Abstract
It is generally believed that modification of general relativity inevitably introduce extra physical degree(s) of freedom.
In this talk I argue that this is not the case by constructing modified gravity theories with two local physical degrees of freedom. After classifying such theories into two types, I show explicit examples and discuss their cosmology and phenomenology.