Scalar-tensor gravity with a non-minimally coupled Higgs field and accelerating universe

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• 作者：Jonghyun Sim ; Tae Hoon Lee
• 关键词：Scalar ; tensor theory of gravity ; Higgs boson ; Dark energy
• 刊名：Journal of the Korean Physical Society
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：68
• 期：6
• 页码：725-729
• 全文大小：130 KB
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• 作者单位：Jonghyun Sim (1)
  Tae Hoon Lee (1)
  
  1. Department of Physics, Research Institute for Origin of Matter and Evolution of Galaxies, Soongsil University, Seoul, 06978, Korea
  
• 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
• 出版者：Springer Netherlands
• ISSN：1976-8524

文摘

We consider general couplings, including non-minimal derivative coupling, of a Higgs boson field to scalar-tensor gravity and calculate their contributions to the energy density and pressure in Friedmann-Robertson-Walker spacetime. In a special case where the kinetic term of the Higgs field is non-minimally coupled to the Einstein tensor, we seek de Sitter solutions for the cosmic scale factor and discuss the possibility that the late-time acceleration and the inflationary era of our universe can be described by means of scalar fields with self-interactions and the Yukawa potential.