  This comment about the article "Hamiltonian for the Zeros of the Riemann Zeta
Function", by C. M. Bender, D. C. Brody, and M. P. M\"uller, published recently
in Phys. Rev. Lett. (Phys. Rev. Lett., 118, 130201, (2017)) gives arguments
showing that the strategy proposed by the authors to prove the Riemann
Hypothesis, does not actually work.
