Numerical prescriptions of early-time divergences of the in-in formalism

DOI10.1088/1475-7516/2022/07/014zbMath1506.83066arXiv2202.06350OpenAlexW4221156479MaRDI QIDQ5099358

Juanyi Yang, Yuhang Zhu, Duc Huy Tran, Yi Wang

Publication date: 31 August 2022

Published in: Journal of Cosmology and Astroparticle Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2202.06350

zbMATH Keywords

inflationcosmological perturbation theoryquantum field theory on curved space

Mathematics Subject Classification ID

Measures of association (correlation, canonical correlation, etc.) (62H20) Relativistic cosmology (83F05) Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.) (30C45) Quantum field theory on curved space or space-time backgrounds (81T20) Geometrodynamics and the holographic principle (83E05) Quantization of the gravitational field (83C45) Technical applications of optics and electromagnetic theory (78A55) Perturbations in context of PDEs (35B20) Euclidean geometries (general) and generalizations (51M05) Numerical approximation and evaluation of special functions (33F05) Mathematical modeling or simulation for problems pertaining to relativity and gravitational theory (83-10)

Cites Work

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• Extrapolation methods for Sommerfeld integral tails
• Schwinger-Keldysh diagrammatics for primordial perturbations
• Development of non-linear transformations for improving convergence of sequences
• THE SPECIAL CANONICAL GROUP
• Expectation Value Formalism in Quantum Field Theory. I

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