VIELBEIN GRAVITY IN THE LIGHT-FRONT GAUGE

D-dimensional Einstein gravity is analysed in the light-front gauge in its first-order vielbein formulation. The calculation is performed in an intrinsically vielbein way. The unconstrained action coincides with previous results obtained using the metric formulation. Although the expression for the light-front energy does not appear to be non-negative due to the presence of the D-2 transverse scalar curvature, it is shown, however, that in the linearised approximation it is non-negative being the transverse kinetic energy of a pure helicity-2 excitation. Results are uniformly given for arbitrary D>or=3.