Outputs (7)

The concept of quasi-integrability (2013)
Other
Ferreira, L., Luchini, G., & Zakrzewski, W. (2013). The concept of quasi-integrability

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... Read More about The concept of quasi-integrability.

Constant curvature solutions of Grassmannian sigma models: (1) Holomorphic solutions (2013)
Journal Article
Delisle, L., Hussin, V., & Zakrzewski, W. (2013). Constant curvature solutions of Grassmannian sigma models: (1) Holomorphic solutions. Journal of Geometry and Physics, 66, 24-36

Topological duality between vortices and planar skyrmions in BPS theories with APD symmetries (2013)
Other
Adam, C., Sanchez-Guillen, J., Wereszczynski, A., & Zakrzewski, W. (2013). Topological duality between vortices and planar skyrmions in BPS theories with APD symmetries

Constant curvature solutions of Grassmannian sigma models: (2) Non-holomorphic solutions (2013)
Journal Article
Delisle, L., Hussin, V., & Zakrzewski, W. (2013). Constant curvature solutions of Grassmannian sigma models: (2) Non-holomorphic solutions. Journal of Geometry and Physics, 71, 1-10. https://doi.org/10.1016/j.geomphys.2013.04.002

A Skyrme-like model with an exact BPS bound (2013)
Journal Article
Ferreira, L., & Zakrzewski, W. (2013). A Skyrme-like model with an exact BPS bound. Journal of High Energy Physics, 2013(9), Article 097. https://doi.org/10.1007/jhep09%282013%29097

We propose a new Skyrme-like model with fields taking values on the sphere S3 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. T... Read More about A Skyrme-like model with an exact BPS bound.

Some aspects of self-duality and generalised BPS theories (2013)
Journal Article
Adam, C., Ferreira, L., da Hora, E., Wereszczynski, A., & Zakrzewski, W. (2013). Some aspects of self-duality and generalised BPS theories. Journal of High Energy Physics, 2013(8), Article 62. https://doi.org/10.1007/jhep08%282013%29062

If a scalar field theory in (1+1) dimensions possesses soliton solutions obeying first order BPS equations, then, in general, it is possible to find an infinite number of related field theories with BPS solitons which obey closely related BPS equatio... Read More about Some aspects of self-duality and generalised BPS theories.

Nonstandard approach to gravity for the dark sector of the Universe (2013)
Other
Stichel, P., & Zakrzewski, W. (2013). Nonstandard approach to gravity for the dark sector of the Universe

We summarize the present state of research on the darkon fluid as a model for the dark sector of the Universe. Nonrelativistic massless particles are introduced as a realization of the Galilei group in an enlarged phase space. The additional degrees... Read More about Nonstandard approach to gravity for the dark sector of the Universe.