Recent developments in Horndeski theory and beyond

Konstantinos F. Dialektopoulos (Yangzhou University)

13-Oct-2020, 13:15-14:45 (3 years ago)

Abstract: The most general scalar-tensor theory with a single scalar field, in four dimensions, leading to second order field equations was introduced by Gregory Horndeski in 1974 and it took his name since. Even though G. Horndeski abandoned physics to become a painter soon after he developed this theory, in the late '00s the theory was rediscovered as generalized Galileons. In this talk, I will review its recent discovery and discuss why it is a powerful tool to explore cosmology and astrophysics beyond general relativity. I will also present its current status after GW170817 and I will give a brief introduction in its generalizations, i.e., Degenerate Higher Order Scalar Tensor (DHOST) theories.

astrophysicscondensed mattergeneral relativity and quantum cosmologyhigh energy physicsmathematical physicsclassical physicsgeneral physics

Audience: researchers in the topic


Theoretical physics seminar @ Tartu

Organizers: Laur Järv, Maria-Jose Guzman*
*contact for this listing

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