The superradiance phenomenon in spin-one particles

Abstract

In this article, we solve the Duffin-Kemmer-Petiau (DKP) equation in the presence of hyperbolic tangent potential for spin-one particles. By partitioning the spin-one spinor, we show that the DKP equation is equivalent to the Klein-Gordon equation formalism. The scattering solutions are derived in terms of hypergeometric functions. The reflection R and transmission T coefficients are calculated in terms of the Gamma functions. The results show the presence of the superradiance phenomenon when R for a specific region in the potential becomes greater than one.