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PIRSA:14030092

Sequestering Lorentz violation in the Lifshitz sector

Pospelov, M. (2014). Sequestering Lorentz violation in the Lifshitz sector. Perimeter Institute. https://pirsa.org/14030092

Maxim Pospelov University of Minnesota

Talk numberPIRSA:14030092
DOI10.48660/14030092
Collection
Talk Type Scientific Series
Subject

Abstract

Horava's proposal to use Lifshitz propagators for gravitons above certain energy scales may provide a viable theory of quantum gravity without further need of UV completion. In my talk, I will address the question of whether the complete lack of Lorentz invariance above a certain energy scale is a big problem for any realistic construction. I will argue that it is not, provided that the onset of Lifshitz scaling for gravitons occurs at momentum scale much lower than the Planck mass. I will also discuss consequences of combining Lifshitz gravity and supersymmetric matter sector.