Correspondence principle constraints on quantum gravity

The construction of effective low energy lagrangians in quantum gravity is examined. It is concluded that a finite perturbative S-matrix does not uniquely determine the effective theory, and that a non-perturbative approach is essential. A spectrum consisting of massive towers (such as in string the...

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Bibliographic Details
Published inPhysics letters. B Vol. 195; no. 1; pp. 50 - 55
Main Author Casher, A.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 27.08.1987
Elsevier Science
Subjects
Exact sciences and technology
General relativity and gravitation
Physics
Quantum gravity
Gravitation
Quantum theory
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Summary:The construction of effective low energy lagrangians in quantum gravity is examined. It is concluded that a finite perturbative S-matrix does not uniquely determine the effective theory, and that a non-perturbative approach is essential. A spectrum consisting of massive towers (such as in string theory) is ruled out.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(87)90884-7