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Vacuum Energy Cancellation in a Non-supersymmetric String

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arxiv hep-th/9807076 v3 pith:CZRYQTC3 submitted 1998-07-10 hep-th

Shamit Kachru , Jason Kumar , Eva Silverstein This is my paper · ORCID
classification hep-th
keywords cancellationstringargueconstantcosmologicalenergyheuristicallyhigher
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We present a nonsupersymmetric orbifold of type II string theory and show that it has vanishing cosmological constant at the one and two loop level. We argue heuristically that the cancellation persists at higher loops.

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Cited by 2 Pith papers

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  1. Asymmetric orbifolds with vanishing one-loop vacuum energy

    hep-th 2026-02 unverdicted novelty 7.0 of 10

    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.

  2. Non-abelian asymmetric orbifolds with vanishing one-loop vacuum energy

    hep-th 2026-07 conditional novelty 6.0 of 10

    A classification finds 17 four-dimensional Type II asymmetric orbifolds with non-abelian point groups and pointwise vanishing one-loop vacuum energy, each also realizable as a Scherk-Schwarz compactification.

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