Zobrazeno 1 - 10
of 35
pro vyhledávání: '"W J Zakrzewski"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-19 (2023)
Abstract We show that a spectral wall, i.e., an obstacle in the dynamics of a bosonic soliton, which arises due to the transition of a normal mode into the continuum spectrum, exists after coupling the original bosonic model to fermions. This spectra
Externí odkaz:
https://doaj.org/article/b6e3ce00c7124ba38a890e02d6f8d2bd
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-26 (2021)
Abstract We show that spectral walls are common phenomena in the dynamics of kinks in (1+1) dimensions. They occur in models based on two or more scalar fields with a nonempty Bogomol’nyi-Prasad-Sommerfield (BPS) sector, hosting two zero modes, whe
Externí odkaz:
https://doaj.org/article/1f46d49d38d14f3cab461d18ce4b37ce
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 1, Pp 1-49 (2020)
Abstract We study various aspects of the scattering of generalized compact oscillons in the signum-Gordon model in (1+1) dimensions. Using covariance of the model we construct traveling oscillons and study their interactions and the dependence of the
Externí odkaz:
https://doaj.org/article/1f81e79217254a96ae5c75e562917cf5
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 4, Pp 1-42 (2018)
Abstract We study various properties of a perturbed signum-Gordon model, which has been obtained through the dimensional reduction of the called ‘first BPS submodel of the Skyrme model’. This study is motivated by the observation that the first B
Externí odkaz:
https://doaj.org/article/d7da3ecb8b2a4a5ba741f2a4f34a77e5
Autor:
W. J. Zakrzewski
Publikováno v:
Physics of Atomic Nuclei. 73:563-570
In this talk we discuss the models recently presented by Bazeia et al. We present various properties of their kink-like solutions and, in particular, the properties of these kinks when they scatter on potential obstructions. We also discuss the issue
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f2be2cf6eba964dae132f432a9252b3
https://doi.org/10.1134/s1063778810030221
https://doi.org/10.1134/s1063778810030221
Publikováno v:
Canadian Journal of Physics. 85:1431-1445
Using numerical simulations we investigate topological charge N = 3, 4 soliton head-on collisions in the CP1 model on a flat torus T2. We observe dual-polygon scattering π/N except for configurations of three solitons starting far away from each oth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::536a4f2107f35bcd2755f03eca1a0374
https://doi.org/10.1139/p07-113
https://doi.org/10.1139/p07-113
Autor:
A. M. Grundland, W. J. Zakrzewski
Publikováno v:
Journal of Mathematical Physics. 44:328-337
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7c68c7eaf6c9f72afb4dfe9a7310c8c
https://doi.org/10.1063/1.1528272
https://doi.org/10.1063/1.1528272
Autor:
W. J. Zakrzewski, A. M. Grundland
Publikováno v:
Journal of Mathematical Physics. 43:3352-3362
A generalization of the Weierstrass system of equations corresponding to CP2 harmonic maps is presented. This generalization allows us to study two-dimensional surfaces immersed in a flat space R8 with Euclidean metric. We use this system to suggest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba32f1684d5d14bdc6594aa67a68c0f3
https://doi.org/10.1063/1.1473874
https://doi.org/10.1063/1.1473874
Autor:
H. J. Wospakrik, W. J. Zakrzewski
Publikováno v:
Journal of Mathematical Physics. 43:1856-1874
We construct multiskyrmion fields of the SU(N) Skyrme models by using harmonic maps of S2 to the Grassmannian Gr(2,N), which we express in terms of rank-2 projectors. Within this construction we derive some approximate spherically symmetric solutions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60e974cce8629efaae4499010ff07b21
https://doi.org/10.1063/1.1452303
https://doi.org/10.1063/1.1452303
Autor:
W J Zakrzewski, B Piette
Publikováno v:
Nonlinearity. 9:897-910
We study the shrinking of solitons in the original (2 + 1)-dimensional sigma model. We show that the rate of this shrinking for a single soliton can be estimated analytically. We perform numerical simulations and show that the time dependence of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab6cc85f83e20f6d3875cdd1ace20985
https://doi.org/10.1088/0951-7715/9/4/005
https://doi.org/10.1088/0951-7715/9/4/005