Orientifold Points in M Theory

Abstract

We identify the lift to M theory of the four types of orientifold points, and show that they involve a chiral fermion on an orbifold fixed circle. From this lift, we compute the number of normalizable ground states for the SO(N) and $Sp(N)$ supersymmetric quantum mechanics with sixteen supercharges. The results agree with known results obtained by the mass deformation method. The mass of the orientifold is identified with the Casimir energy.

11 pages, Latex, references added

References in corpus (1)

• Normalized Vacuum States in N = 4 Supersymmetric Yang--Mills Quantum Mechanics with Any Gauge Group

Cited by in corpus (18)

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• Effective Lagrangian for 3d N=4 SYM theories for any gauge group and monopole moduli spaces
• Bulk Witten Indices from D=10 Yang Mills Integrals
• Supersymmetric Yang--Mills Matrix Integrals Revisited