Hidden Lorentz symmetry of the Horava - Lifshitz gravity

TL;DR

This paper reveals that Horava-Lifshitz gravity, which typically breaks Lorentz symmetry, can actually admit a form of Lorentz symmetry through a preferred global time foliation, challenging previous assumptions.

Contribution

It demonstrates the existence of a hidden Lorentz symmetry in Horava-Lifshitz gravity via a preferred global time foliation.

Findings

Lorentz symmetry can be preserved in Horava-Lifshitz gravity.

A preferred global time foliation exists in the theory.

This challenges the common view of Lorentz symmetry breaking in such models.

Abstract

In this letter it is shown that the Horava-Lifshitz gravity theory admits Lorentz symmetry preserving preferred global time foliation of the spacetime.