  We investigate the spontaneous emission of a two-level atom placed in the
vicinities of a plasmonic cloak composed of a coated sphere. In the dipole
approximation, we show that the spontaneous emission rate can be reduced to its
vacuum value provided the atomic emission frequency lies within the plasmonic
cloak frequency operation range. Considering the current status of plasmonic
cloaking devices, this condition may be fulfilled for many atomic species so
that we argue that atoms with a sufficiently strong transition can be used as
quantum, local probes for the efficiency of plasmonic cloaks.
