[1103.5587] Status of Horava gravity: A personal perspective

Authors: Matt Visser (Victoria University of Wellington)

Date: 29 Mar 2011

Abstract: Horava gravity is a relatively recent (Jan 2009) idea in theoretical physics for trying to develop a quantum field theory of gravity. It is not a string theory, nor loop quantum gravity, but is instead a traditional quantum field theory that breaks Lorentz invariance at ultra-high (presumably trans-Planckian) energies, while retaining approximate Lorentz invariance at low and medium (sub-Planckian) energies. The challenge is to keep the Lorentz symmetry breaking controlled and small - small enough to be compatible with experiment. I will give a very general overview of what is going on in this field, paying particular attention to the disturbing role of the scalar graviton.

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Mar 30, 2011

1103.5587 (/preprints)
2011-03-30, 08:04 [edit]

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