  We show that the Bohmian approach in terms of persisting particles that move
on continuous trajectories following a deterministic law can be literally
applied to QFT. By means of the Dirac sea model -- exemplified in the electron
sector of the standard model neglecting radiation -- we explain how starting
from persisting particles, one is led to standard QFT employing creation and
annihilation operators when tracking the dynamics with respect to a reference
state, the so-called vacuum. Since on the level of wave functions, both
formalisms are mathematically equivalent, this proposal provides for an
ontology of QFT that includes a dynamics of individual processes, solves the
measurement problem and explains the appearance of creation and annihilation
events.
