Specific choices of form factors in ghost-free infinite derivative gravity cancel all one-loop logarithmic UV divergences except the Gauss-Bonnet term and a surface term.
Unitarity issues in higher derivative field theories
2 Pith papers cite this work. Polarity classification is still indexing.
2
Pith papers citing it
abstract
We analyze the unitarity properties of higher derivative quantum field theories which are free of ghosts and ultraviolet singularities. We point out that in spite of the absence of ghosts most of these theories are not unitary. This result confirms the difficulties of finding a consistent quantum field theory of quantum gravity.
years
2025 2verdicts
UNVERDICTED 2representative citing papers
Derives conditions under which energy remains positive for individual plane waves in six- and eight-derivative polynomial gravity, focusing on tensor and scalar sectors of the free theory.
citing papers explorer
-
Cancellation of UV divergences in ghost-free infinite derivative gravity
Specific choices of form factors in ghost-free infinite derivative gravity cancel all one-loop logarithmic UV divergences except the Gauss-Bonnet term and a surface term.
-
Conditions for positivity of energy in superrenormalizable polynomial gravity
Derives conditions under which energy remains positive for individual plane waves in six- and eight-derivative polynomial gravity, focusing on tensor and scalar sectors of the free theory.