  Controlling the dynamics of Majorana fermions (MF) subject to time-varying
driving fields is of fundamental importance for the practical realization of
topological quantum computing. In this work we study how it is possible to
dynamically generate and maintain the topological phase in one-dimensional
superconducting nanowires after the temporal variation of the Hamiltonian
parameters. Remarkably we show that for a sudden quench the system can never
relax towards a state exhibiting fully developed MF, independently of the
initial and final Hamiltonians. Only for sufficiently slow protocols the system
behaves adiabatically, and the topological phase can be reached. Finally we
address the crucial question of how "adiabatic" a protocol must be in order to
manipulate the MF inside the topological phase without deteriorating their
Majorana character.
