Self-gravitating darkon fluid with anisotropic scaling
(2010)
Journal Article
Stichel, P., & Zakrsewski, W. (2010). Self-gravitating darkon fluid with anisotropic scaling. The European Physical Journal C, 70(3), 713-721. https://doi.org/10.1140/epjc/s10052-010-1484-2
All Outputs (119)
Canonical surfaces associated with projectors in Grassmannian sigma models (2010)
Journal Article
Hussin, V., Yurdusen, I., & Zakrzewski, W. (2010). Canonical surfaces associated with projectors in Grassmannian sigma models. Journal of Mathematical Physics, 51(10), Article 103509. https://doi.org/10.1063/1.3486690We discuss the construction of higher-dimensional surfaces based on the harmonic maps of S2 into PN−1 and other Grassmannians. We show that there are two ways of implementing this procedure—both based on the use of the relevant projectors. We study v... Read More about Canonical surfaces associated with projectors in Grassmannian sigma models.
Ratchet dynamics of large polarons in asymmetric diatomic molecular chains (2010)
Journal Article
Brizhik, L., Eremko, A., Piette, B., & Zakrzewski, W. (2010). Ratchet dynamics of large polarons in asymmetric diatomic molecular chains. Journal of Physics: Condensed Matter, 22(15), Article 155105. https://doi.org/10.1088/0953-8984/22/15/155105We study the dynamics of large polarons in diatomic molecular chains, at zero temperature, under the influence of an external, periodic in time, electric field of zero mean value. We show that in asymmetric chains, i.e. chains with two different atom... Read More about Ratchet dynamics of large polarons in asymmetric diatomic molecular chains.
A class of (1+1) dim models that generalize the Sine-Gordon model and some of their properties. (2010)
Journal Article
Zakrzewski, W. (2010). A class of (1+1) dim models that generalize the Sine-Gordon model and some of their properties. Physics of Atomic Nuclei, 73(3), 587-594. https://doi.org/10.1134/s1063778810030221In 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... Read More about A class of (1+1) dim models that generalize the Sine-Gordon model and some of their properties..
Can cosmic acceleration be caused by exotic massless particles? (2009)
Journal Article
Stichel, P., & Zakrzewski, W. (2009). Can cosmic acceleration be caused by exotic massless particles?. Physical Review D, D 80,
Q-ball scattering on barriers and holes in 1 and 2 Spatial dimensions (2009)
Journal Article
Al-Alawi, J., & Zakrzewski, W. (2009). Q-ball scattering on barriers and holes in 1 and 2 Spatial dimensions
A Thermodynamic Model of Microtubule Assembly and Disassembly (2009)
Journal Article
Piette, B., Liu, J., Peeters, K., Smertenko, A., Hawkins, T., Deeks, M., …Hussey, P. (2009). A Thermodynamic Model of Microtubule Assembly and Disassembly. PLoS ONE, 4(8), Article e6378. https://doi.org/10.1371/journal.pone.0006378Microtubules are self-assembling polymers whose dynamics are essential for the normal function of cellular processes including chromosome separation and cytokinesis. Therefore understanding what factors effect microtubule growth is fundamental to our... Read More about A Thermodynamic Model of Microtubule Assembly and Disassembly.
Scattering of sine-Gordon Breathers on a Potential Well (2009)
Journal Article
Piette, B., & Zakrzewski, W. (2009). Scattering of sine-Gordon Breathers on a Potential Well. Physical review E: Statistical, nonlinear, and soft matter physics, 79(4), Article 046603. https://doi.org/10.1103/physreve.79.046603We analyze the scattering of the classical sine-Gordon breathers on a square potential well. We show that the scattering process depends not only on the vibration frequency of the breather and its incoming speed but also on its phase as well as the d... Read More about Scattering of sine-Gordon Breathers on a Potential Well.
Scattering of Topological Solitons on Barriers and Holes of Deformed Sine-Gordon Models (2008)
Journal Article
Al-Alawi, J., & Zakrzewski, W. (2008). Scattering of Topological Solitons on Barriers and Holes of Deformed Sine-Gordon Models
Wobbles and other kink-breather solutions of the Sine Gordon model (2008)
Journal Article
Ferreira, L., Piette, B., & Zakrzewski, W. (2008). Wobbles and other kink-breather solutions of the Sine Gordon model. Physical review E: Statistical, nonlinear, and soft matter physics, 77, https://doi.org/10.1103/physreve.77.036613We study various solutions of the sine-Gordon model in (1+1) dimensions. We use the Hirota method to construct some of them and then show that the wobble, discussed in detail in a recent paper by Kälberman, is one of such solutions. We concentrate ou... Read More about Wobbles and other kink-breather solutions of the Sine Gordon model.
Ratchet behaviour of polarons in molecular chains (2008)
Journal Article
Brizhik, L., Eremko, A., Piette, B., & Zakrzewski, W. (2008). Ratchet behaviour of polarons in molecular chains. Journal of Physics: Condensed Matter, 20(25), https://doi.org/10.1088/0953-8984/20/25/255242We study the ratchet behaviour of polarons in diatomic molecular chains under the influence of an external electromagnetic field which is periodic in time. We show that in asymmetric chains a harmonic unbiased field causes a drift of polarons. This p... Read More about Ratchet behaviour of polarons in molecular chains.
Skyrme Model with Different Mass Terms (2008)
Journal Article
Piette, B., & Zakrzewski, W. (2008). Skyrme Model with Different Mass Terms. Physical Review D, 77, https://doi.org/10.1103/physrevd.77.074009We consider a one parameter family of mass terms for the Skyrme model that disfavors shell-like configurations for multibaryon classical solutions. We argue that a model with such mass terms can provide a better description of nuclei as shell-like co... Read More about Skyrme Model with Different Mass Terms.
Acceleration-extended symmetries in nonrelativistic space-time with a cosmological constant (2008)
Journal Article
with a cosmological constant. European Journal of Physics, C 55, 119-124
Surfaces in ${\mathbb R}^{N^2-1}$ based on harmonic maps $S^2\rightarrow CP^{N-1}$ (2007)
Journal Article
Zakrzewski, W. (2007). Surfaces in ${\mathbb R}^{N^2-1}$ based on harmonic
maps $S^2\rightarrow CP^{N-1}$. Journal of Mathematical Physics, 48,
Scattering of a two skyrmion configuration on potential holes or barriers in a model Landau-Lifshitz equation (2007)
Journal Article
Collins, J., & Zakrzewski, W. (2007). Scattering of a two skyrmion configuration on potential holes or barriers in a model Landau-Lifshitz equation
Acceleration-extended Galilean symmetries with central charges and their dynamical realisations (2007)
Journal Article
Lukierski, J., Stichel, P., & Zakrzewski, W. (2007). Acceleration-extended Galilean symmetries with
central charges and their dynamical realisations. Physics Letters B, B 650,
Non ${\pi\over N}$ Scattering of $CP^1$ solitons (2007)
Journal Article
Admunsen, D., Cova, R., & Zakrzewski, W. (2007). Non ${\pi\over N}$ Scattering of $CP^1$ solitons. Canadian Journal of Physics, 85, 1431-1445
Scattering of Topological Solitons on Barriers and Holes in Two $\lambda \phi^4$ Models (2007)
Journal Article
Al-Alawi, J., & Zakrzewski, W. (2007). Scattering of Topological Solitons on Barriers and Holes in Two $\lambda \phi^4$ Models
Q-ball scattering on barriers and holes in 1 and 2 Spatial dimensions (2007)
Journal Article
Al-Alawi, J., & Zakrzewski, W. (2007). Q-ball scattering on barriers and holes in 1 and 2 Spatial dimensions
Soliton solutions of the nonlinear Schr\"odinger equation with nonlocal Coulomb and Yukawa interactions (2007)
Journal Article
Hartmann, B., & Zakrzewski, W. (2007). Soliton solutions of the nonlinear Schr\"odinger equation with nonlocal Coulomb and Yukawa interactions. Physics Letters A, A 366, 540-544