Results 21 to 30 of about 541 (80)
Exact WKB analysis of the vacuum pair production by time-dependent electric fields
We study the vacuum pair production by a time-dependent strong electric field based on the exact WKB analysis. We identify the generic structure of a Stokes graph for systems with the vacuum pair production and show that the number of produced pairs is ...
Hidetoshi Taya +4 more
doaj +1 more source
On Lax pairs and matrix extended simple Toda systems
A A1 Toda system is extended via Lax pair formulations in order to probe noncommutative variables extensions. Systems, some solvable, are built using matrix generalizations.
M. Legaré
wiley +1 more source
Singular Pöschl-Teller II potentials and gravitating kinks
We report a two-dimensional (2D) gravitating kink model, for which both the background field equations and the linear perturbation equation are exactly solvable.
Yuan Zhong
doaj +1 more source
We study the role of geometrical and topological concepts in the recent developments of theoretical physics, notably in non‐Abelian gauge theories and superstring theory, and further we show the great significance of these concepts for a deeper understanding of the dynamical laws of physics.
Luciano Boi
wiley +1 more source
Functional methods for false-vacuum decay in real time
We present the calculation of the Feynman path integral in real time for tunneling in quantum mechanics and field theory, including the first quantum corrections.
Wen-Yuan Ai +2 more
doaj +1 more source
We derive a one-parameter family of gauged Skyrme models from Yang-Mills theory on S 1 × ℝ3, in which skyrmions are well-approximated by calorons and monopoles.
Josh Cork
doaj +1 more source
Decay of I-ball/oscillon in classical field theory
I-balls/oscillons are long-lived and spatially localized solutions of real scalar fields. They are produced in various contexts of the early universe in, such as, the inflaton evolution and the axion evolution.
Masahiro Ibe +3 more
doaj +1 more source
Exact quantization and analytic continuation
In this paper we give a streamlined derivation of the exact quantization condition (EQC) on the quantum periods of the Schrödinger problem in one dimension with a general polynomial potential, based on Wronskian relations.
Barak Gabai, Xi Yin
doaj +1 more source
Instanton expansions and phase transitions
A central object in any axionic theory is its periodic potential, which is typically generated by instantons. The goal of this paper is to understand what physically happens to the theory when we lose control of the potential’s instanton expansion.
John Stout
doaj +1 more source
O(N) invariance of the multi-field bounce
In his 1977 paper on vacuum decay in field theory: The Fate of the False Vacuum, Coleman considered the problem of a single scalar field and assumed that the minimum action tunnelling field configuration, the bounce, is invariant under O(4) rotations in ...
Kfir Blum +4 more
doaj +1 more source

