The axial gauge for gravity

Although fictitious field loops vanish when the axial gauge condition n^mu h_{mu nu} =0 is imposed on the graviton field h, the author finds that the one-loop infinite counterterms in gravity nevertheless involve non-covariant terms such as (n^mu R_{mu nu} n^nu )²; this is in contrast to the renormalisable Yang-Mills case where axis-dependent infinities do not arise.