Question on D=26 --- String Theory versus Quantum Gravity ---

Details Question on D=26 --- String Theory versus Quantum Gravity --- Question on D=26 --- String Theory versus Quantum Gravity ---

1997-10-16

arxiv.org/abs/hep-th/9710132v1

Int.J.Mod.Phys. A13 (1998) 3081-3100

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, LaTeX, two stylefiles included

Scientific paper

10.1142/S0217751X98001529

In the covariant-gauge two-dimensional quantum gravity, various derivations of the critical dimension D=26 of the bosonic string are critically reviewed, and their interrelations are clarified. It is shown that the string theory is not identical with the proper framework of the two-dimensional quantum gravity, but the former should be regarded as a particular aspect of the latter. The appearance of various anomalies is shown to be explainable in terms of a new type of anomaly in a unified way.

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