Mode analysis and Ward identities for perturbative quantum gravity in de Sitter spaceCrete Univ., Iraklion (Greece). Dept. of PhysicsperTsamis, N. C.Florida Univ., Gainesville, FL (United States). Dept. of PhysicsperWoodard, R. P.orgUSDOE, Washington, DC (United States)orgNorth Atlantic Treaty Organization, Brussels (Belgium)Florida Univ., Gainesville, FL (United States). Dept. of PhysicsUnited States1992-06-01engWe study linearized gravitons on the D-dimensional open submanifold spanned by de Sitter conformal coordinates. The physical modes are found in the same way as for flat space by imposing exact gauge conditions on the invariant field equations and then exploiting the residual gauge freedom of solutions. The resulting polarization tensors have vanishing zero components and are transverse and traceless, just as in flat space. We also show that vacua exist such that the ghost and graviton propagators obey the Ward identity relating them.12 p.66110071 Classical And Quantum Mechanics, General PhysicsRelativity And GravitationWard IdentityClassical And Quantum MechanicsDe Sitter GroupGeneral Theory Of Particles And FieldsPerturbation Theory662100Quantum Gravity72 Physics Of Elementary Particles And FieldsGravitonsGreen Function 661310Lagrangian Function