Scalar Gravity and Higgs Mechanism
نویسنده
چکیده
The role of the auxiliary scalar field φ in Brans-Dicke theory is discussed. If a constant vacuum energy is assumed to be the origin of dark energy, then the corresponding density parameter would be a quantity varying with φ; and almost all of the fundamental components of our universe can be unified into the dynamical equation for φ. As a generalization of Brans-Dicke theory, we propose a new gravity theory with a complex scalar field φ which is coupled to the cosmological curvature scalar. Through such a coupling the Higgs mechanism is naturally incorporated into the evolution of the universe, and a running mass scale is obtained in which the gauge symmetry breaks spontaneously. PACS number(s): 98.80.Cq, 11.10.Kk
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