Quantum field and uniformly accelerated oscillator

We present an exact treatment of the influences on a quantum scalar field in its Minkowski vacuum state induced by coupling of the field to a uniformly accelerated harmonic oscillator. We show that there is no radiation from the oscillator from the point of view of a uniformly accelerating observer. On the other hand, there is radiation from the point of view of an inertial observer if there are asymptotically switching on and off processes. It is shown that Einstein-Podolsky-Rosen- (EPR-)like correlations of Rindler particles in Minkowski vacuum states are modified by a phase factor in front of the momentum-symmetric Rindler operators. The exact quantization of a time-dependent oscillator coupled to a massless scalar field is given.