Ichiro Oda

Massive Ghost Confinement, Dipole Equation and Multipole States in Quadratic Gravity

We investigate the problem of confinement of massive ghost, which violates the unitarity of the physical S-matrix, in quadratic gravity on the basis of a manifestly covariant and local canonical operator formalism. First, we reconsider the manifestly covariant quantization of quadratic gravity in the de Donder gauge (t...