  The Boolean algebra is the natural theoretical framework for a classical
information treatment. The basic logical operations are usually performed using
logic gates. In this Letter we demonstrate that NOT, OR and AND gates can be
realized exploiting the near-field radiative interaction in N-body systems with
phase change materials. With the recent development of a photon thermal
transistor and thermal memory, this result paves the way for a full information
treatment and smart solutions for active thermal management at nanoscale with
photons.
