Cosmological Constant and Axions in String Theory

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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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22 pages

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Svrcek, Peter & /Stanford U., Phys. Dept. /SLAC August 18, 2006.

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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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22 pages

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  • Journal Name: Submitted to Journal of High Energy Physics (JHEP)

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  • Report No.: SLAC-PUB-11957
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 889680
  • Archival Resource Key: ark:/67531/metadc876168

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  • August 18, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 23, 2016, 11:50 a.m.

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Svrcek, Peter & /Stanford U., Phys. Dept. /SLAC. Cosmological Constant and Axions in String Theory, article, August 18, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc876168/: accessed May 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.