2013/09/11 by Yaron Hadad, Hadad, Yaron
Physics and Astronomy · #37K15 #Black Holes and Theoretical Physics #Differential Geometry (math.DG) #Exactly Solvable and Integrable Systems (nlin.SI) #FOS: Mathematics #FOS: Physical sciences #Mathematical Physics (math-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1309.2791
openalex publication_date 2013/09/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The reduction problem of the chiral field equation on symmetric spaces is studied. It is shown that the symmetric chiral field has infinitely many local conservation laws. A recursive formula for these conservation laws is derived and the first associated integral of motion are given explicitly. Furthermore, the Zakharov-Mikhailov (inverse scattering) transform is used to derive explicit formulas for the N-soliton solution on arbitrary diagonal background. The solitons' properties and interactions are analyzed. Such solitons are naturally related to gravitational solitons of Einstein's field equations, and this result is used to clarify why the latter do not have fixed amplitude and velocities (unlike `classical' solitons). Finally, it is proven that the symmetric chiral field (matrix) equation is equivalent to a single scalar equation, which in turn, is equivalent to the Sine-Gordon equation.