Energy, linear momentum, and mass transfer by an electromagnetic wave in a negative-refraction medium
V.G. Veselago a, b
a Prokhorov General Physics Institute of the Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119942, Russian Federation
b Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow Region, 141700, Russian Federation
The problem of photon linear momentum in a refracting medium is discussed. It is shown that the relations P = ħk and ΔM = E/c2 cannot hold simultaneously in a refracting medium and that in the particular case of a negative-refraction medium, light pressure is replaced by light attraction. It is also shown that the Abraham energy — momentum tensor is actually not a tensor because of its lack of relativistic invariance.