Reality of complex affine Toda solitons

Z. Zhu, D. G. Caldi
1995 Journal of Mathematical Physics  
There are infinitely many topological solitons in any given complex affine Toda theories and most of them have complex energy density. When we require the energy density of the solitons to be real, we find that the reality condition is related to a simple "pairing condition." Unfortunately, rather few soliton solutions in these theories survive the reality constraint, especially if one also demands positivity. The resulting implications for the physical applicability of these theories are briefly discussed.
doi:10.1063/1.531194 fatcat:yk2rpv3f3negnh7bxw32ivdgba