Quantization leading to a natural flattening of the axion potential

Mar, 2010
7 pages
Published in:
  • Phys.Rev.D 82 (2010) 125035
e-Print:

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Abstract: (arXiv)
Starting from the general cosine form for the axion effective potential, we quantize the axion and show that the result is described by a naturally flat potential, if interactions with other particles are not considered. This feature therefore restores the would-be Goldstone-boson nature of the axion, and we calculate the corresponding vacuum energy density, which does not need to be too large by orders of magnitude compared to Dark Energy.
  • 14.80.Va
  • vacuum state: energy
  • axion: potential
  • particle: interaction
  • energy: density
  • axion: Goldstone particle
  • quantization
  • partition function
  • boundary condition
  • effective potential
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