Aproximación adiabática para la interacción de dos solitones con ganancias y pérdidas

The interaction of soliton solutions of the Nonlinear Schrödinger Equation is studied based on the adiabatic approach for the system parameters. The dynamics of two solitons with gain and loss in amplification is analyzed. If the perturbation is not present, the in-phase soliton interaction is attractive and forms a bound state. While the solitons are in phase with gain in amplification, their amplitudes increase; but the period of oscillation of the bound state and the relative distance between the solitons decrease. For the case of loss in amplification, the amplitude decreases and the solitons begin to repel, consequently, the period of oscillations and the relative distance between solitons increase.