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- Title
CLASSICAL SCALE OF QUANTUM GRAVITY.
- Authors
Kazakov, Kirill A.
- Abstract
Characteristic length scale of the post-Newtonian corrections to the gravitational field of a body is given by its gravitational radius r[sub g]. The role of this scale in quantum domain is discussed in the context of the low-energy effective theory. The question of whether quantum gravity effects appear already at r[sub g] leads to the question of correspondence between classical and quantum theories, which in turn can be unambiguously resolved by considering the issue of general covariance. The O(ℏ[sup 0]) loop contributions turn out to violate the principle of general covariance, thus revealing their essentially quantum nature. The violation is O(1/N), where N is the number of particles in the body. This leads naturally to a macroscopic formulation of the correspondence principle.
- Subjects
QUANTUM gravity; GRAVITATIONAL fields; CORRESPONDENCE principle (Quantum mechanics); ASTROPHYSICS
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2003, Vol 12, Issue 9, p1715
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271803004110