Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-12-27
Nucl.Phys. B727 (2005) 196-217
Physics
High Energy Physics
High Energy Physics - Theory
Latex file, 5 figures, 21 pages
Scientific paper
10.1016/j.nuclphysb.2005.08.021
We have calculated the free energy up to two loop to compare T^2 with T^4 in IIB matrix model. It turns out that T^2 has smaller free energy than T^4. We have also discussed the generation of the gauge group by considering k-coincident fuzzy tori and found that in this case U(1) gauge group is favored. This means that if the true vacuum is four-dimensional, it is not a simple fuzzy space considered here.
Bal Subrata
Hanada Masanori
Kawai Hikaru
Kubo Fukuichiro
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