Spontaneous Symmetry Breaking in 5D Conformally Invariant Gravity. (27th July 2016)

• Record Type: Journal Article
• Authors: Moon, Taeyoon; Oh, Phillial
• Other Names: Majumder Barun Academic Editor.
• Is Part Of: Advances in high energy physics. Volume 2016(2016)
• Publication Date: 2016-07-27
• Subjects: Particles (Nuclear physics) -- Periodicals; Particles (Nuclear physics); Periodicals; 539.76
• DOI: 10.1155/2016/5353267
• Languages: English
• ISSNs: 1687-7357

Abstract

Abstract : We explore the possibility of the spontaneous symmetry breaking in 5D conformally invariant gravity, whose action consists of a scalar field nonminimally coupled to the curvature with its potential. Performing dimensional reduction via ADM decomposition, we find that the model allows an exact solution giving rise to the 4D Minkowski vacuum. Exploiting the conformal invariance with Gaussian warp factor, we show that it also admits a solution which implements the spontaneous breaking of conformal symmetry. We investigate its stability by performing the tensor perturbation and find the resulting system is described by the conformal quantum mechanics. Possible applications to the spontaneous symmetry breaking of time-translational symmetry along the dynamical fifth direction and the brane-world scenario are discussed.