FeynGrav : FeynCalc extension for gravity amplitudes

Boris Latosh

FeynGrav : FeynCalc extension for gravity amplitudes

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arxiv 2201.06812 v4 pith:5FUOFW66 submitted 2022-01-18 hep-th

Boris Latosh This is my paper

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keywords gravitydealfeyncalcfeyngravfeynmanframeworkpackagerules

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Package FeynGrav which provides a framework to deal with Feynman rules for gravity within FeynCalc is presented. We present a framework to deal with the corresponding Feynman rules for general relativity and non-supersymmetric matter minimally coupled to gravity. Applicability of the package is tested with 2 -> 2 on-shell tree level graviton scattering, polarization operators, and one-loop scalar-gravitational interaction structure.

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Gauge and diffeomorphism invariance from quantum information principles
hep-th 2025-11 conditional novelty 5.0 of 10

Within a one-parameter family of quartic-vertex deformations, the gauge- and diffeomorphism-invariant interactions are the only points combining maximal entanglement with minimal nonzero magic.

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