  We introduce a local radiative heat-pumping effect between two bodies in a
many-body system, obtained by periodically modulating both the temperature and
the position of an intermediate object using an external source of energy. We
show that the magnitude and the sign of energy flow can be tuned by changing
the oscillation amplitude and dephasing of the two parameters. This many-body
effect paves the way for an efficient and active control of heat fluxes at the
nanoscale.
