The Boundedness of Euclidean Gravity and the Wavefunction of the Universe

  title={The Boundedness of Euclidean Gravity and the Wavefunction of the Universe},
  author={Suchismita Sarangi and S H Tye},
When the semi-positive cosmological constant is dynamical, the naive Euclidean Einstein action is unbounded from below and the Hartle-Hawking wavefunction of the universe is not normalizable. With the inclusion of back-reaction (a crucial point), the presence of the metric perturbative modes (as well as matter fields) as the environment (that is, to be integrated or traced out) introduces a correction term that provides a bound to the Euclidean action. So the improved wavefunction is… CONTINUE READING


Publications referenced by this paper.
Showing 1-10 of 48 references

An approach to the cosmological constant problem(s)

  • G. L. Kane, M. J. Perry, A. N. Zytkow
  • Phys. Lett. B 609, 7
  • 2005
Highly Influential
8 Excerpts

The statistics of string / m theory vacua

  • M. R. Douglas
  • JHEP 05
  • 2003
1 Excerpt

Dynamical Neutralization Of The Cosmological Constant

  • J. D. Brown, C. Teitelboim
  • Phys. Lett. B 195,() 177; R. Bousso and J…
  • 2000
1 Excerpt

Quantization of fourform fluxes and dynamical neutralization of the cosmological constant

  • R. Bousso, J. Polchinski
  • 2000