Thursday, June 10, 2010, 3:00 pm — Small Seminar Room, Bldg. 510
Attempts to explain the cosmic acceleration by modifying gravity on large scales generally lead to equivalence principle violations.
I will discuss how this arises, despite a universal coupling in the microscopic action. The effect is due to a classical renormalization of the scalar charge associated with a long range fifth force, and can be O(1) for some theories. Observational tests will be discussed.
Hosted by: Anze Slosar
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