Q-ball dynamics

We investigate the dynamics of Q-balls in one, two and three space dimensio ns, using numerical simulations of the full nonlinear equations of motion. We find that the dynamics of Q-balls is extremely complex, involving proces ses such as charge transfer and Q-ball fission. We present results of simul ations which illustrate the salient features of 2-Q-ball interactions and g ive qualitative arguments to explain them in terms of the evolution of the time-dependent phases. (C) 2000 Elsevier Science B.V. All rights reserved.