String Gravity and Cosmology: Some new ideas

Details String Gravity and Cosmology: Some new ideas String Gravity and Cosmology: Some new ideas

1995-09-08

arxiv.org/abs/gr-qc/9509017v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

To appear in the proceedings of the Four Seas Conference, Trieste, June 1995

Scientific paper

String theory provides the only consistent framework so far that unifies all interactions including gravity. We discuss gravity and cosmology in string theory. Conventional notions from general relativity like geometry, topology etc. are well defined only as low energy approximations in string theory. At small distances physics deviates from the field theoretic intuition. We present several examples of purely stringy phenomena which imply that the physics at strong curvatures can be quite different from what one might expect from field theory. They indicate new possibilities in the context of quantum cosmology.

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