Orbifold and Twisted Zero-branes
نویسنده
چکیده
M(atrix) theory compactified on an orbifold T9/Z2 is studied. Via zero-brane parton scattering we find that each of the 2 = 254 orbifold fixed points carry −1/32 units of zero-brane charge. The anomalous flux is cancelled by introducing a twisted sector consisting of 32 zero-branes that are spacetime supersymmetry singlets. These twisted sector zero-branes are nothing but gravitational waves propagating along the M-theory direction. There is no D0-partons in the untwisted sector, a fact consistent with holographic principle. For low-energy excitations, the orbifold compactification is described by ten-dimensional supersymmetric Yang-Mills theory with gauge group SO(32). 1 Work supported in part by the NSF-KOSEF Bilateral Grant, KOSEF SRC-Program, Ministry of Education Grant BSRI 97-2410, the Monell Foundation and the Seoam Foundation Fellowships, and the Korea Foundation for Advanced Studies.
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تاریخ انتشار 1997