Results 31 to 40 of about 11,120,519 (277)
Scattering amplitudes and electromagnetic horizons
Journal of High Energy Physics, 2023 We consider the scattering of charged particles on particular electromagnetic fields which have properties analogous to gravitational horizons. Classically, particles become causally excluded from regions of spacetime beyond a null surface which we ...
Anton Ilderton, William Lindved
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Nonperturbative effect in threshold resummation [PDF]
Journal of High Energy Physics, 2009 JHEP06(2009 ...
Zhao Li, C.-P. Yuan, Chong Sheng Li
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CFT description of BH’s and ECO’s: QNMs, superradiance, echoes and tidal responses
Journal of High Energy Physics, 2022 Using conformal field theory and localization tecniques we study the propagation of scalar waves in gravity backgrounds described by Schrödinger like equations with Fuchsian singularities.
Dario Consoli +3 more
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Resurgent Asymptotics of Jackiw–Teitelboim Gravity and the Nonperturbative Topological Recursion [PDF]
Annales de l'Institute Henri Poincare. Physique theorique, 2023 Jackiw–Teitelboim dilaton quantum gravity localizes on a double-scaled random-matrix model, whose perturbative free energy is an asymptotic series. Understanding the resurgent properties of this asymptotic series, including its completion into a full ...
B. Eynard +4 more
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Comment on nonperturbative effects in [PDF]
Physics Letters B, 1997 Comment: 9 pages revtex, 2 figures included; minor changes, to appear in Phys.
Lisa Randall +2 more
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Critical behavior of the 2d scalar theory: resumming the N8LO perturbative mass gap
Journal of High Energy Physics, 2021 We apply the optimized perturbation theory (OPT) to resum the perturbative series describing the mass gap of the bidimensional ϕ 4 theory in the ℤ2 symmetric phase.
Gustavo O. Heymans, Marcus Benghi Pinto
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Gentle introduction to rigorous Renormalization Group: a worked fermionic example
Journal of High Energy Physics, 2021 Much of our understanding of critical phenomena is based on the notion of Renormalization Group (RG), but the actual determination of its fixed points is usually based on approximations and truncations, and predictions of physical quantities are often of
Alessandro Giuliani +2 more
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Quantum unitary dynamics of a charged fermionic field and Schwinger effect
Journal of High Energy Physics, 2021 In quantum field theory, particle creation occurs, in general, when an intense external field, such as an electromagnetic field, breaks time translational invariance. This leads to an ambiguity in the definition of the vacuum state.
Álvaro Álvarez-Domínguez +3 more
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Nonperturbative gedanken experiments in Einstein-dilaton-Gauss-Bonnet gravity: Nonlinear transitions and tests of the cosmic censorship beyond general relativity [PDF]
Physical Review D, 2022 As the only gravity theory with quadratic curvature terms and second-order field equations, Einstein-dilaton-Gauss-Bonnet gravity is a natural testbed to probe the high-curvature regime beyond General Relativity in a fully nonperturbative way.
Fabrizio Corelli +3 more
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Journal of High Energy Physics, 2023 Nonlinear sigma models on de Sitter background have proved a useful prototype for quantum gravity in summing the large logarithms which arise from loop corrections.
R. P. Woodard, B. Yesilyurt
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