Abstract
There exists a nonlinear theory of gravity which is not structurally equivalent to general relativity and that, in the non-interacting limit, describes a free massless particle with helicity ±2. We have recently shown that this theory can be understood as the result of self-coupling, in complete parallelism to the well-known case of general relativity. This special relativistic field theory of gravity exhibits a decoupling of vacuum zero-point energies of matter and passes all the known experimental tests in gravitation. It is explicitly demonstrated that there is no flow of the effective cosmological constant under the action of the renormalization group at one-loop level, while simple symmetry arguments show that this would continue to be true for higher-loop corrections. The important lesson is that just mild local assumptions concerning the nature of the particle mediating the gravitational interactions are enough to motivate theories which are free of the cosmological constant problem.
Highlights
The cosmological constant problem appears when trying to combine the formalism of quantum field theory with the curved spacetime notions of general relativity
We have recently shown that this theory can be understood as the result of self-coupling, in complete parallelism to the well-known case of general relativity
It is explicitly demonstrated that there is no flow of the effective cosmological constant under the action of the renormalization group at one-loop level, while simple symmetry arguments show that this would continue to be true for higher-loop corrections
Summary
Absence of cosmological constant problem in special relativistic field theory of gravity: oneloop renormalization group. This content has been downloaded from IOPscience. Please scroll down to see the full text. Ser. 600 012032 (http://iopscience.iop.org/1742-6596/600/1/012032) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 176.84.184.176 This content was downloaded on 11/06/2016 at 14:27 Please note that terms and conditions apply. Spanish Relativity Meeting (ERE 2014): almost 100 years after Einstein’s revolution
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