Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-03-06
Phys.Lett.B401:30-37,1997
Physics
High Energy Physics
High Energy Physics - Theory
13 pages, harvmac big; minor reference change
Scientific paper
10.1016/S0370-2693(97)00366-3
We study the symmetry structure of N=8 quantum mechanics, and apply it to the physics of D0-brane probes in type I' string theory. We focus on the theory with a global $Spin(8)$ R symmetry which arises upon dimensional reduction from $2d$ field theory with $(0,8)$ supersymmetry. There are several puzzles involving supersymmetry which we resolve. In particular, by taking into account the gauge constraint and central charge we explain how the system preserves supersymmetry despite having different numbers of bosonic and fermionic variables. The resulting zero-point energy leads to a linear potential consistent with supersymmetry, and the metric is largely unconstrained. We discuss implications for type I' string theory and the matrix model proposal for M theory.
Banks Tom
Seiberg Nathan
Silverstein Eva
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