The EFT Bootstrap at Finite M_PL

2025/01/30 by Carl Beadle, Giulia Isabella, Beadle, Carl +9 · 1 voice · 6 citations
Computer Science · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Speech Recognition and Synthesis #hep-th

paper · pdf · doi:10.48550/arxiv.2501.18465

openalex publication_date 2025/01/30 · arxiv published 2025/01/30 · arxiv updated 2025/01/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We explore the impact of loop effects on positivity in effective field theories emerging in the infrared from unitary and causal microscopic dynamics. Focusing on massless particles coupled to gravity, we address the treatment of forward-limit divergences from loop discontinuities and establish necessary conditions for maintaining computational control in perturbation theory. While loop effects remain small, ensuring consistency in our approach leads to a significant impact on bounds, even at tree level.

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• Weak Gravity Conjecture in the sky: gravitational waves from preheating in Einstein-Maxwell-Scalar EFT
• Causal Bounds on EFTs with anomalies with a Pseudoscalar, Photons, and Gravitons
• Strings from Almost Nothing
• Positivity bounds in scalar-QED EFT at one-loop level
• Primal S-matrix bootstrap with dispersion relations

Discussions

• The EFT Bootstrap at Finite M_PL Carl Beadle, Giulia Isabella, Davide Perrone, Sara Ricossa, Francesco Riva, Francesco Serra arxiv.org/abs/2501.18465 [bsky, 3 points, 0 comments]

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