EN
The Lukacs property of the free Poisson distribution is studied. We prove that if free 𝕏 and 𝕐 are free Poisson distributed with suitable parameters, then 𝕏+𝕐 and $(𝕏+𝕐)^{-1/2}𝕏(𝕏+𝕐)^{-1/2}$ are free. As an auxiliary result we compute the joint cumulants of 𝕏 and $𝕏^{-1}$ for free Poisson distributed 𝕏. We also study the Lukacs property of the free Gamma distribution.