Speaker
Dr
Khamphee Karwan
(The Institute for Fundamental Study)
Summary
We study the Vainshtein mechanism in general disformal gravity which is a result of applying a general disformal transformation to Einstein gravity. We investigate the situations in which the late time accelerated expansion of the universe can be obtained in this theory. Based on these situations, we find that the Vainshtein mechanism can work when the scalar field in this theory is a phantom field or its kinetic term has a positive sign in the spherically symmetric static limit.
Primary author
Dr
Khamphee Karwan
(The Institute for Fundamental Study)
