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Causality Constrains Higher Curvature Corrections to Gravity

6 Pith papers cite this work. Polarity classification is still indexing.

6 Pith papers citing it
abstract

We show that causality constrains the sign of quartic Riemann corrections to the Einstein-Hilbert action. Our constraint constitutes a restriction on candidate theories of quantum gravity.

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2026 5 2025 1

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representative citing papers

Multipositivity Constrains the Chiral Lagrangian

hep-th · 2026-05-20 · unverdicted · novelty 6.0

Multipositivity bounds derived from planar tree-level scattering amplitudes constrain Wilson coefficients of the chiral Lagrangian from below by the chiral anomaly.

The Equivalence Principle at High Energies Completes the Spectrum

hep-th · 2026-05-19 · unverdicted · novelty 6.0

Tree-level gravitational scattering under the equivalence principle mandates single-particle states in all irreducible representations constructible from a single seed charge, with equal interaction strengths.

Amplitudes and partial wave unitarity bounds

hep-ph · 2025-04-17 · unverdicted · novelty 6.0

Develops spinor-helicity formalism generalizing partial wave unitarity bounds for multi-particle scattering and spin-2 or higher-spin theories.

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Showing 6 of 6 citing papers.