Results 21 to 30 of about 491 (60)
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
Vacuum decays around spinning black holes
We investigate a vacuum decay around a spinning seed black hole by using the Israel junction condition and conclude that the spin of black hole would suppress a vacuum decay rate compared to that for a non-spinning case, provided that the surface of ...
Naritaka Oshita +2 more
doaj +1 more source
Generalization of instanton-induced inflation and dynamical compactification
It was shown that Yang-Mills instantons on an internal space can trigger the expansion of our four-dimensional universe as well as the dynamical compactification of the internal space.
Jeongwon Ho +3 more
doaj +1 more source
On catalyzed vacuum decay around a radiating black hole and the crisis of the electroweak vacuum
False vacuum decay is a key feature in quantum field theories and exhibits a distinct signature in the early Universe cosmology. It has recently been suggested that the false vacuum decay is catalyzed by a black hole (BH), which might cause the ...
Takumi Hayashi +3 more
doaj +1 more source
Charge-Swapping Q-balls and Their Lifetimes
For scalar theories accommodating spherically symmetric Q-balls, there are also towers of quasi-stable composite Q-balls, called charge swapping Q-balls (CSQs).
Qi-Xin Xie +2 more
doaj +1 more source
Revisit on two-dimensional self-gravitating kinks: superpotential formalism and linear stability
Self-gravitating kink solutions of a two-dimensional dilaton gravity are revisited in this work. Analytical kink solutions are derived from a concise superpotential formalism of the dynamical equations.
Yuan Zhong
doaj +1 more source
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
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
In this article we study a modification of axion physics in which the dual axion acquires a mass. This mass explicitly breaks the shift symmetry of the dual axion. The potential breaking of this shift symmetry poses a dual axion quality problem. When the
Arthur Platschorre
doaj +1 more source
Instantons and entanglement entropy
We would like to put the area law — believed to be obeyed by entanglement entropies in the ground state of a local field theory — to scrutiny in the presence of nonperturbative effects.
Arpan Bhattacharyya +2 more
doaj +1 more source

