Vacuum quantum effect for the moving Plates in Robertson--Walker Spacetime
The energy-momentum tensor for a massless conformally coupled scalar field in the region between two parallel plates moving by uniform proper accelerations in k = −1 Robertson–Walker spacetime is investigated. We assume that the scalar field satisfies the Dirichlet boundary condition on the plates. k = −1 Robertson– Walker space is conformally related to the Rindler space, as a result we can obtain vacuum expectation values of energy-momentum tensor for conformally invariant field in Robertson–Walker space from the corresponding Rindler counterpart by the conformal transformation. E-mail: rezakord@ipm.ir E-mail: pouriya@ipm.ir