Comment on “Generation of a superposition of coherent states in a resonant cavity and its nonclassicality and decoherence”
Gang Ren · Canadian Journal of Physics · 2014
Arpita Ghosh and P.K. Das (Can. J. Phys. 86: 811 (2008) doi:10.1139/p08-013 ) derived an analytic expression for the Wigner function of a superposition of coherent state. We point out the incorrectness of this result.