SME Gravity Sector
نویسنده
چکیده
The Standard-Model Extension (SME) is defined as the general effective field theory (EFT) that incorporates Lorentz violation. In flat Minkwoski spacetime, the SME has the following features: ⇒ it is defined in terms of an observer-scalar Lagrangian L ⇒ it includes dynamical matter fields φ, ψ, A, . . . ⇒ it includes fixed background tensors aμ, bμ, cμν , . . . that break Lorentz symmetry ⇒ it includes the Standard Model (SM), QED, . . . The goals of my talk are to review how the SME is merged with gravity theory. Specifically, the gravity sector should ⇒ include GR and extensions of GR ⇒ incorporate backgrounds in curved spacetime ⇒ include fermions and matter couplings ⇒ provide a framework for gravitational phenomenology
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