  Two atoms put at the foci of a perfect lens [J.B. Pendry, Phys. Ref. Lett.
85, 3966 (2000)] are shown to exhibit perfect sub- and super-radiance even over
macroscopic distances limited only by the propagation length in the free-space
decay time. If the left-handed material forming the perfect lens has nearly
constant negative refraction and vanishing absorption over a spectral range
larger than the natural linewidth, the imaginary part of the retarded
Greens-function between the two focal points is identical to the one at the
same spatial position and the atoms undergo a Markovian dynamics. Collective
decay rates and level shifts are calculated from the Greens-function of the
Veselago-Pendry lens and limitation as well as potential applications are
discussed.
