Results 41 to 50 of about 36,776 (204)
Stabilization of 2D Quantum Gravity by branching interactions [PDF]
, 1995 In this paper the stabilization of 2D quantum Gravity by branching interactions is considered. The perturbative expansion and the first nonperturbative term of the stabilized model are the same than the unbounded matrix model which define pure Gravity ...
Alvarez-Gaumé +23 more
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Nonperturbative effects in neutrino magnetic moments
Physical Review D, 2022 Typos corrected, affiliation, appendices and references added, matches published version in ...
Feng-Zhi Chen +2 more
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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
doaj +1 more source
The axion quality problem: global symmetry breaking and wormholes
Journal of High Energy Physics, 2021 Continuous global symmetries are expected to be broken by gravity, which can lead to important phenomenological consequences. A prime example is the threat that this poses to the viability of the Peccei-Quinn solution to the strong CP problem.
James Alvey, Miguel Escudero
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Borel and Stokes Nonperturbative Phenomena in Topological String Theory and c=1 Matrix Models [PDF]
, 2009 We address the nonperturbative structure of topological strings and c=1 matrix models, focusing on understanding the nature of instanton effects alongside with exploring their relation to the large-order behavior of the 1/N expansion.
Pasquetti, Sara, Schiappa, Ricardo
core +2 more sources
Quantum-induced trans-Planckian energy near horizon
Journal of High Energy Physics, 2018 We study the loop effects on the geometry and boundary conditions of several black hole spacetimes one of which is time-dependent and analyze the energy measured by an infalling observer near their horizons.
A. J. Nurmagambetov, I. Y. Park
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Journal of High Energy Physics, 2021 We study neutral fermions pair creation with anomalous magnetic moment from the vacuum by time-independent magnetic-field inhomogeneity as an external background. We show that the problem is technically reduced to the problem of charged-particle creation
T. C. Adorno +3 more
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Nonperturbative Effect of Attractive Forces in Viscous Liquids [PDF]
Physical Review Letters, 2009 4 pages, 3 ...
Berthier, Ludovic, Tarjus, Gilles
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Exploring the θ-vacuum structure in the functional renormalization group approach
Journal of High Energy Physics, 2022 We investigate the θ-vacuum structure and the ’t Hooft anomaly at θ = π in a simple quantum mechanical system on S 1 to scrutinize the applicability of the functional renormalization group (fRG) approach.
Kenji Fukushima +2 more
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