One Loop Calculation of Cosmological Constant in a Scale Invariant Theory

Abstract

We compute the cosmological constant in a scale invariant scalar field theory. The gravitational action is also suitably modified to respect scale invariance. Due to scale invariance the theory does not admit a cosmological constant term. The scale invariance is broken by a recently introduced mechanism called cosmological symmetry breaking. This leads to a nonzero cosmological constant. We compute the one loop corrections to the cosmological constant and show that it is finite.

13 pages, 6 figures

References in corpus (2)

• Dynamics of dark energy
• Cosmological Symmetry Breaking, Pseudo-scale invariance, Dark Energy and the Standard Model

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• Standard Model with Cosmologically Broken Quantum Scale Invariance
• Cosmological Perturbation Analysis in a Scale Invariant Model of Gravity
• Dirac-Born-Infeld-Einstein theory with Weyl invariance