  We consider the asymmetric simple exclusion process with Langmuir kinetics on
a periodic lattice. We analytically obtain the exact time evolution of
correlation functions with arbitrary length starting from the initial state
with no particle in the system. The exact stationary state of this model has
been known for the totally asymmetric case. We propose a basis transformation
which simplifies the proof of the stationarity of this state and enables the
generalization to the partially asymmetric case. Moreover, we construct
low-energy excitations and obtain the exact relaxation time.
