| Autor: |
Sakai, Norisuke, Senda, Ikuo |
| Zdroj: |
Progress of Theoretical Physics: PTP; March 1986, Vol. 75 Issue: 3 p692-692, 1p |
| Abstrakt: |
Computation of the one-loop vacuum energy is attempted for closed bosonic string compactified on various tori. Modular invariance of the one-loop vacuum energy is shown. The divergent tachyon contribution forces us to employ a subtraction prescription. For one-dimensional torus, the affine Kac-Moody algebra for SU(2)×SU(2) is realized at the absolute minimum of the vacuum energy. For general r-dimensional torus, the algebra for [SU(2)×SU(2)]r is found to be an unstable saddle point. A detailed study of r=2 case shows that SU(3)×SU(3) has the lowest vacuum energy. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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