Quantum gravity: an introduction to some recent results

Enrique Alvarez
Rev. Mod. Phys. 61, 561 – Published 1 July 1989
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Abstract

This article presents a general overview of the problems involved in the application of the quantum principle to a theory of gravitation. The ultraviolet divergences that appear in any perturbative computation are reviewed in some detail, and it is argued that it is unlikely that any theory based on local quantum fields could be consistent. This leads in a natural way to a supersymmetric theory of extended objects as the next candidate theory to study. An elementary introduction to superstrings closes the review, and some speculations about the most promising avenues of research are offered.

    DOI:https://doi.org/10.1103/RevModPhys.61.561

    ©1989 American Physical Society

    Authors & Affiliations

    Enrique Alvarez

    • Departmento de Física Teórica, CXI, Universidad Autónoma de Madrid, 28049 Madrid, Spain

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    Issue

    Vol. 61, Iss. 3 — July - September 1989

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