Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Zakrzewski, Wojtek J."'
Publikováno v:
Phys. Rev. E 100, 062205 (2019)
We study the long-range electron and energy transfer mediated by a polaron on an $\alpha$-helix polypeptide chain coupled to donor and acceptor molecules at opposite ends of the chain. We show that for specific parameters of the system, an electron i
Externí odkaz:
http://arxiv.org/abs/1909.08266
We use ideas of generalized self-duality conditions to construct real scalar field theories in (1 + 1)-dimensions with exact self dual sectors. The approach is based on a pre-potential U that defines the topological charge and the potential energy of
Externí odkaz:
http://arxiv.org/abs/1808.10052
We consider deformations of the $SU(3)$ Affine Toda theory (AT) and investigate the integrability properties of the deformed theories. We find that for some special deformations all conserved quantities change to being conserved only asymptotically,
Externí odkaz:
http://arxiv.org/abs/1602.02003
A new approach for the construction of finite action solutions of the supersymmetric $\mathbb{C}P^{N-1}$ sigma model is presented. We show that this approach produces more non-holomorphic solutions than those obtained in previous approaches. We study
Externí odkaz:
http://arxiv.org/abs/1507.08508
We investigate the geometric characteristics of constant gaussian curvature surfaces obtained from solutions of the $G(m,n)$ sigma model. Most of these solutions are related to the Veronese sequence. We show that we can distinguish surfaces with the
Externí odkaz:
http://arxiv.org/abs/1412.1368
Publikováno v:
J. Math. Phys. 56, 023506 (2015)
Constant curvature surfaces are constructed from the finite action solutions of the supersymmetric $\mathbb{C}P^{N-1}$ sigma model. It is shown that there is a unique holomorphic solution which leads to constant curvature surfaces: the generalized Ve
Externí odkaz:
http://arxiv.org/abs/1406.3371
Autor:
Ferreira, L. A., Zakrzewski, Wojtek J.
We report analytical and numerical results on breather-like field configurations in a theory which is a deformation of the integrable sine-Gordon model in (1+1) dimensions. The main motivation of our study is to test the ideas behind the recently pro
Externí odkaz:
http://arxiv.org/abs/1404.5812
Autor:
Ferreira, L. A., Zakrzewski, Wojtek J.
Following our attempts to define quasi-integrability in which we related this concept to a particular symmetry of the two-soliton function we check this condition in three classes of modified Sine-Gordon models in (1+1) dimensions. We find that the n
Externí odkaz:
http://arxiv.org/abs/1308.4412
We show that certain field theory models, although non-integrable according to the usual definition of integrability, share some of the features of integrable theories for certain configurations. Here we discuss our attempt to define a "quasi-integra
Externí odkaz:
http://arxiv.org/abs/1307.7722
Autor:
Ferreira, L. A., Zakrzewski, Wojtek J.
We propose a new Skyrme-like model with fields taking values on the sphere S^3 or, equivalently, on the group SU(2). The action of the model contains a quadratic kinetic term plus a quartic term which is the same as that of the Skyrme-Faddeev model.
Externí odkaz:
http://arxiv.org/abs/1307.5856