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Dark Energy Regulation with Approximate Emergent Conformal Symmetry

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 نشر من قبل Yongsung Yoon
 تاريخ النشر 2009
  مجال البحث فيزياء
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 تأليف Yongsung Yoon




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A cosmic potential which can relax the vacuum energy is proposed in a framework of scalar-tensor gravity. In the phase of the gravity scalar field around the evolution with an approximate emergent conformal symmetry, we have obtained a set of cosmological equations with the dark energy regulated to the order of a conformal anomaly parameter. Through a role of the cosmic potential, the vacuum energy which could be generated in matter Lagrangian does not contribute to the dark energy in the phase.



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