How Inflationary Gravitons Affect the Force of Gravity
نویسندگان
چکیده
We employ an unregulated computation of the graviton self-energy from gravitons on de Sitter background to infer renormalized result. This is used quantum-correct linearized Einstein equation. solve this equation for potentials that represent gravitational response a static, point mass. find large spatial and temporal logarithmic corrections Newtonian potential shift. Although suppressed by minuscule loop-counting parameter, these cause perturbation theory break down at distances late times. Another interesting fact induce up three logarithms, whereas loop massless, minimally coupled scalars produces only single logarithm. in line with mode function: induces two scalar gives none.
منابع مشابه
Matrix Gravity and Massive Colored Gravitons
We formulate a theory of gravity with a matrix-valued complex vierbein based on the SL(2N,C)⊗SL(2N,C) gauge symmetry. The theory is metric independent, and before symmetry breaking all fields are massless. The symmetry is broken spontaneously and all gravitons corresponding to the broken generators acquire masses. If the symmetry is broken to SL(2,C) then the spectrum would correspond to one ma...
متن کاملGravity, Relic Coherent Gravitons and Optical Chaos
We discuss the production of massive relic coherent gravitons in a particular class of f(R) gravity, which arises from string theory, and their possible imprint in the Cosmic Microwave Background. In fact, in the very early Universe, these relic gravitons could have acted as slow gravity waves. They may have then acted to focus the geodesics of radiation and matter. Therefore, their imprint on ...
متن کاملFrom Gravitons to Gravity: Myths and Reality
There is a general belief, reinforced by statements in standard textbooks, that: (i) one can obtain the full non-linear Einstein’s theory of gravity by coupling a massless, spin-2 field hab self-consistently to the total energy momentum tensor, including its own; (ii) this procedure is unique and leads to Einstein-Hilbert action and (iii) it only uses standard concepts in Lorentz invariant fiel...
متن کاملInflationary cosmology from STM theory of gravity
I study the power-law and de Sitter expansions for the universe during inflation from the STM theory of gravity. In a de Sitter expansion the additional dimension is related to the cosmological constant Λ = 3/ψ2. I find from experimental data that the mass of the inflaton field is m2 = 2/(3ψ2). In power-law expansion, the fifth coordinate (ψ) appears to be a dimensionless constant. The interest...
متن کاملAnisotropic higher derivative gravity and inflationary universe
Stability analysis of the Kantowski-Sachs type universe in pure higher derivative gravity theory is studied in details. The non-redundant generalized Friedmann equation of the system is derived by introducing a reduced one dimensional generalized KS type action. This method greatly reduces the labor in deriving field equations of any complicate models. Existence and stability of inflationary so...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Universe
سال: 2022
ISSN: ['2218-1997']
DOI: https://doi.org/10.3390/universe8070376