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arxiv: gr-qc/0411093 · v3 · submitted 2004-11-18 · 🌀 gr-qc · hep-th

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Categorizing Different Approaches to the Cosmological Constant Problem

Stefan Nobbenhuis
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classification 🌀 gr-qc hep-th
keywords differentconstantcosmologicalproblemaddressingadvantagesapproachapproaches
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We have found that proposals addressing the old cosmological constant problem come in various categories. The aim of this paper is to identify as many different, credible mechanisms as possible and to provide them with a code for future reference. We find that they all can be classified into five different schemes of which we indicate the advantages and drawbacks. Besides, we add a new approach based on a symmetry principle mapping real to imaginary spacetime.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Resolution of the cosmological constant problem by unimodular gravity and signature reversal symmetry

    gr-qc 2026-03 unverdicted novelty 6.0

    Unimodular gravity with signature reversal symmetry in a D=2(2n+1)-dimensional bulk resolves the second cosmological constant problem by determining its specific small value.