Boundary Conditions and Heterotic Construction in Topological Membrane Theory
Abstract
Using the topological membrane approach to string theory, we suggest a geometric origin for the heterotic string. We show how different membrane boundary conditions lead to different string theories. Using zeta-function regularization, we show that the Casimir energy distinguishes between the heterotic boundary conditions and all others. This may be the reason why topological membranes lead naturally to heterotic strings.Keywords
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