Results 11 to 20 of about 3,202 (225)
Nonperturbative effects and nonperturbative definitions in matrix models and topological strings [PDF]
Journal of High Energy Physics, 2008 We develop techniques to compute multi-instanton corrections to the 1/N expansion in matrix models described by orthogonal polynomials. These techniques are based on finding trans-series solutions, i.e. formal solutions with exponentially small corrections, to the recursion relations characterizing the free energy.
Marino Beiras, Marcos
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Nonperturbative effects in supergravity [PDF]
, 2006 A promising candidate for a fundamental theory of nature, incorporating both general relativity and quantum mechanics, is string theory. This theory is based on one-dimensional extended objects that move through spacetime. However, string theory is most naturally formulated in ten dimensions.
Davidse, Marijn
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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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Emergent symmetry in Brownian SYK models and charge dependent scrambling
Journal of High Energy Physics, 2022 In this work, we introduce a symmetry-based approach to study the scrambling and operator dynamics of Brownian SYK models at large finite N and in the infinite N limit.
Lakshya Agarwal, Shenglong Xu
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Scattering amplitudes from dispersive iterations of unitarity
Journal of High Energy Physics, 2023 We present and numerically implement a computational method to construct relativistic scattering amplitudes that obey analyticity, crossing, elastic and inelastic unitarity in three and four spacetime dimensions.
Piotr Tourkine, Alexander Zhiboedov
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Nonperturbative Effects of Divergent Ghost Loops [PDF]
Acta Physica Polonica B Proceedings Supplement, 2014 6 pages, 3 figures; contribution to the Workshop "Excited QCD 2014'', Bjelasnica (Sarajevo) February 2-8 ...
Binosi, Daniele, Ibañez, David
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Drell-Yan angular lepton distributions at small x from TMD factorization.
Journal of High Energy Physics, 2021 The Drell-Yan process is studied in the framework of TMD factorization in the Sudakov region s » Q 2 » q ⊥ 2 $$ {q}_{\perp}^2 $$ corresponding to recent LHC experiments with Q 2 of order of mass of Z-boson and transverse momentum of DY pair ∼ few tens ...
Ian Balitsky
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Theory and modeling of nonperturbative effects in thermoviscous acoustofluidics [PDF]
Physical Review E, 2023 A theoretical model of thermal boundary layers and acoustic heating in microscale acoustofluidic devices is presented. Based on it, an iterative numerical model is developed that enables numerical simulation of nonlinear thermoviscous effects due to acoustic heating and thermal advection.
Jonas Helboe Joergensen, Henrik Bruus
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Revealing Nonperturbative Effects in the SYK Model [PDF]
Theoretical and Mathematical Physics, 2019 We study the large $N$ saddle points of two SYK chains coupled by an interaction that is nonlocal in Euclidean time. We start from analytic treatment of the free case with $q=2$ and perform the numerical study of the interacting case $q=4$. We show that in both cases there is a nontrivial phase structure with infinite number of phases.
Aref'eva, I. Ya. +2 more
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Tunnelling of charged particles from black holes
Journal of High Energy Physics, 2020 We state and explain the total rate at which a charged non-rotating black hole emits charged particles, taking into account both Hawking radiation and Schwinger pair production simultaneously.
George Johnson
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