Abstract
We discuss the calculation of the three-loop β-function for the twodimensional non-linear σ-model with torsion. It satisfies an integrability condition which leads to the (α′)1,2-corrections (to Einstein gravity) generated from the theory of closed bosonic strings at the tree level. Some applications of these results are briefly discussed.
Original language | English |
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Pages (from-to) | 193-202 |
Number of pages | 10 |
Journal | General Relativity and Gravitation |
Volume | 22 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 1990 |
ASJC Scopus subject areas
- Physics and Astronomy(all)