Thermal discrete dipole approximation for near-field radiative heat transfer in many-body systems with arbitrary nonreciprocal bodies

The theoretical study of many-body effects in the context near-field radiative heat transfer (NFRHT) has already led to prediction a plethora thermal radiation phenomena. Special attention been paid nonreciprocal systems which lack Lorentz reciprocity shown give rise unique physical effects. However, most work this regard carried out with help approaches that consider either point-like particles or highly symmetric bodies (such as spheres), are not easy realize and explore experimentally. In we develop approach based on discrete dipole approximation (TDDA) is able describe NFRHT between objects arbitrary size shape. We illustrate potential relevance analysis two related phenomena, namely existence persistent currents photon Hall effect, system several magneto-optical bodies. Our TDDA paves way for closing gap experiment theory hindering progress topic systems.