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Cosmological Constant and Axions in String Theory

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arxiv hep-th/0607086 v1 pith:YXRQUKYV submitted 2006-07-13 hep-th astro-phhep-ph

classification hep-thastro-phhep-ph
keywords axionsconstantcosmologicalstringaxioncompactificationspotentialquintessence
verification ladder T0 review T1 audit T2 compute T3 formal
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String theory axions appear to be promising candidates for explaining cosmological constant via quintessence. In this paper, we study conditions on the string compactifications under which axion quintessence can happen. For sufficiently large number of axions, cosmological constant can be accounted for as the potential energy of axions that have not yet relaxed to their minima. In compactifications that incorporate unified models of particle physics, the height of the axion potential can naturally fall close to the observed value of cosmological constant.

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Cited by 2 Pith papers

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

  1. String Axiverse

    hep-th 2009-05 unverdicted novelty 7.0 of 10

    String theory predicts an axiverse of ultralight axions whose effects on CMB polarization, matter power spectrum, and black hole superradiance can be probed by future astrophysical experiments.

  2. Worldline effective field theory of inspiralling black hole binaries in presence of dark photon and axionic dark matter

    hep-th 2023-05 unverdicted novelty 6.0 of 10

    Computes 1PN conservative dynamics for gravitational/EM/Proca fields and 2PN for scalar, plus radiation effects from axion-photon coupling at high PN orders in binary black hole systems with dark matter.

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