• DOI:10.1007/978-3-642-11897-5_2
Corpus ID: 15738184

Quantum gravity as sum over spacetimes

@article{Ambjrn2010QuantumGA,
  title={Quantum gravity as sum over spacetimes},
  author={J. Ambj{\o}rn and J. Jurkiewicz and R. Loll},
  journal={Lecture Notes in Physics},
  year={2010},
  volume={807},
  pages={59-124}
}

J. Ambjørn, J. Jurkiewicz, R. Loll

Published 2010

Physics

Lecture Notes in Physics

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A major unsolved problem in theoretical physics is to reconcile the classical theory of general relativity with quantum mechanics. These lectures will deal with an attempt to describe quantum gravity as a path integral over geometries. Such an approach has to be non-perturbative since gravity is a non-renormalizable quantum field theory when the dimension of spacetime is four.