• Corpus ID: 12659392

Quantum gravity with a positive cosmological constant

  title={Quantum gravity with a positive cosmological constant},
  author={Lee Smolin},
  journal={arXiv: High Energy Physics - Theory},
  • L. Smolin
  • Published 9 September 2002
  • Physics
  • arXiv: High Energy Physics - Theory
A quantum theory of gravity is described in the case of a positive cosmological constant in 3 + 1 dimensions. Both old and new results are described, which support the case that loop quantum gravity provides a satisfactory quantum theory of gravity. These include the existence of a ground state, discoverd by Kodama, which both is an exact solution to the constraints of quantum gravity and has a semiclassical limit which is deSitter spacetime. The long wavelength excitations of this state are… 
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