On the phase shift in a uniformly rotating Michelson interferometer (comment on "Quadratic Sagnac effect — the influence of the gravitational potential of the Coriolis force on the phase difference between the arms of a rotating Michelson interferometer (an explanation of D C Miller's experimental results 1921—1926)" by G B Malykin and V I Pozdnyakova [Phys. Usp.58 398 (2015); Usp. Fiz. Nauk185 431 (2015)])
P. Maraner School of Economics and Management, Free University of Bozen-Bolzano, Universitätsplatz-Piazzetta dell'Università 1, Bolzano-Bozen, I-39100, Italy
It is argued that the "quadratic Sagnac effect" recently put forward by G B Malykin and V I Pozdnyakova is the consequence of an incorrect estimation of second order relativistic corrections and not a real physical phenomenon. The correct expression for the phase shift induced by rotations in a Michelson interferometer is presented.