Vanishing Perturbative Vacuum Energy in Non-Supersymmetric Orientifolds

Carlo Angelantonj; Matteo Cardella

Vanishing Perturbative Vacuum Energy in Non-Supersymmetric Orientifolds

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arxiv hep-th/0403107 v2 pith:RLKOS5LH submitted 2004-03-09 hep-th

Vanishing Perturbative Vacuum Energy in Non-Supersymmetric Orientifolds

Carlo Angelantonj , Matteo Cardella This is my paper

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We present a novel source for supersymmetry breaking in orientifold models, and show that it gives a vanishing contribution to the vacuum energy at genus zero and three-half. We also argue that all the corresponding perturbative contributions to the vacuum energy from higher-genus Riemann surfaces vanish identically.

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Asymmetric orbifolds with vanishing one-loop vacuum energy
hep-th 2026-02 unverdicted novelty 7.0

Non-supersymmetric type II asymmetric orbifolds with Z_k x Z_k Abelian point groups (k=2,3,4) admit vanishing one-loop vacuum energy via sector-wise conservation of a supercharge-like operator.