  The stabilizing properties of one-error correcting jump codes are explored
under realistic non-ideal conditions. For this purpose the quantum algorithm of
the tent-map is decomposed into a universal set of Hamiltonian quantum gates
which ensure perfect correction of spontaneous decay processes under ideal
circumstances even if they occur during a gate operation. An entanglement gate
is presented which is capable of entangling any two logical qubits of different
one-error correcting code spaces. With the help of this gate simultaneous
spontaneous decay processes affecting physical qubits of different code spaces
can be corrected and decoherence can be suppressed significantly.
