New formulation of Horava-Lifshitz quantum gravity as a master constraint theory

Cho-Pin Soo, Jinsong Yang, Hoi Lai Yu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Both projectable and non-projectable versions of Horava-Lifshitz gravity face serious challenges. In the non-projectable version, the constraint algebra is seemingly inconsistent. The projectable version lacks a local Hamiltonian constraint, thus allowing for an extra scalar mode which can be problematic. A new formulation of non-projectable Horava-Lifshitz gravity, naturally realized as a representation of the master constraint algebra studied by loop quantum gravity researchers, is presented. This yields a consistent canonical theory with first class constraints. It captures the essence of Horava-Lifshitz gravity in retaining only spatial diffeomorphisms (instead of full space-time covariance) as the physically relevant non-trivial gauge symmetry; at the same time the local Hamiltonian constraint needed to eliminate the extra mode is equivalently enforced by the master constraint.

Original languageEnglish
Pages (from-to)275-278
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume701
Issue number2
DOIs
Publication statusPublished - 2011 Jul 4

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gravitation
formulations
algebra
retaining
scalars
symmetry

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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New formulation of Horava-Lifshitz quantum gravity as a master constraint theory. / Soo, Cho-Pin; Yang, Jinsong; Yu, Hoi Lai.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 701, No. 2, 04.07.2011, p. 275-278.

Research output: Contribution to journalArticle

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