Work

The dressing method as non linear superposition in sigma models

Year: 2021

Type: article

Abstract: We apply the dressing method on the Non Linear Sigma Model (NLSM), which describes the propagation of strings on ℝ × S2, for an arbitrary seed. We obtain a formal solution of the corresponding auxiliary system, which is expressed in terms of the solutions of the NLSM that have the same Pohlmeyer counterpart as the seed. Accordingly, we show that the dressing method can be applied without solving any differential equations. In this context a superposition principle emerges: the dressed solution is expressed as a non-linear superposition of the seed with solutions of the NLSM with the same Pohlmeyer counterpart as the seed.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep03(2021)024

Authors: Dimitrios Katsinis, Ioannis Mitsoulas, Georgios Pastras

Institutions: National and Kapodistrian University of Athens, National Centre of Scientific Research "Demokritos", Institute of Nuclear and Particle Physics, National Technical University of Athens

Language: English

Topic: Nonlinear Waves and Solitons

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond