Zobrazeno 1 - 10
of 2 543
pro vyhledávání: '"A. Wereszczynski"'
Using a renormalization-inspired perturbation expansion we show that oscillons in a generic field theory in (1+1)-dimensions arise as dressed Q-balls of a universal (up to the leading nonlinear order) complex field theory. This theory reveals a close
Externí odkaz:
http://arxiv.org/abs/2410.24109
Consider a classical (1+1)-dimensional oscillon of small amplitude $\epsilon$. To all orders in $\epsilon$, the oscillon solution is exactly periodic. We study small perturbations of such periodic configurations. These perturbations are themselves pe
Externí odkaz:
http://arxiv.org/abs/2409.15661
Autor:
Alonso-Izquierdo, A., Martinez, D. Canillas, Sanchez, C. Garzon, Leon, M. A. Gonzalez, Wereszczynski, A.
The defect-type solutions of a deformed $O(2N+1)$ linear sigma model with a real and $N$ complex fields in $(1+1)$-dimensional Minkowski spacetime are studied. All the solutions are analytically found for the $N=2$ case. Two types of solitons have be
Externí odkaz:
http://arxiv.org/abs/2407.13225
Autor:
Adam, Christoph, Mourelle, Jorge Castelo, Filho, Etevaldo dos Santos Costa, Herdeiro, Carlos A. R., Wereszczynski, Andrzej
Bosonic stars represent a hypothetical exotic type of compact stellar objects that could be observed from the gravitational signal of coalescing binaries in current and future gravitational wave detectors. There are two main families of bosonic stars
Externí odkaz:
http://arxiv.org/abs/2406.07613
Publikováno v:
Physical Review D 110 (2024) 065004
We find a spectral wall in collisions of two vortices in the Abelian Higgs model at the critical coupling. It occurs if the out-of-phase mode of initially separated vortices is excited.
Comment: 6 pages, 4 figures and ancillary files (5 videos)
Comment: 6 pages, 4 figures and ancillary files (5 videos)
Externí odkaz:
http://arxiv.org/abs/2406.05725
We show that coupling the $\textrm{SU}(2)$-valued Skyrme field to the $\rho$-meson solves the long-standing issue of (in)compressibility in the solitonic Skyrme model. Even by including only one $\rho\pi$ interaction term, motivated by a holographic-
Externí odkaz:
http://arxiv.org/abs/2405.20757
Publikováno v:
Physical Review D 110 (2024) 085006
Models are developed for the motion of charge-2 Abelian Higgs vortices through the 2-vortex moduli space $M$, with the vortices excited by their shape mode oscillations. The models simplify to the well-known geodesic flow on $M$, modified by a potent
Externí odkaz:
http://arxiv.org/abs/2405.20249
We show that any nonlinear field theory giving rise to static solutions with finite energy like, e.g., topological solitons, allows us to derive an infinite number of integral identities which any such solution has to obey. These integral identities
Externí odkaz:
http://arxiv.org/abs/2404.05789
We show that the decay of strongly excited oscillons in a single vacuum model reveals a chaotic, fractal-like pattern very much like one found in kink-antikink collision in the $\phi^4$ model. This structure can be attributed to the resonant energy t
Externí odkaz:
http://arxiv.org/abs/2403.00443
We show that large scale oscillons, i.e., quasi-periodic, long living particle like solutions, may exist in massless theories, too. Their existence is explained using an effective (smeared) mass threshold which takes into account nonlinear (finite) p
Externí odkaz:
http://arxiv.org/abs/2312.05308