The one-dimensional bigausson model at zero temperature is generalized. The results of this generalization are the logarithmic soliton and logarithmic bisoliton which are, for special choice of parameters, equal to the gausson and bigausson respectively. The logarithmic bisoliton model of high temperature superconductivity explains (i) the different critical temperatures for the same crystal lattice and the same density of the charge carriers, (ii) the localization and its effect on superconductivity, (iii) the different coherence lengths for the same crystal lattice, the same density of the charge carriers, and the same T c , (iv) the complexity of the normal state, and (v) the nonstability of the anomalous high Tc superconductivity (T>150 K ).