3 papers
gr-qc2002
Invariant quantization in warped spacetimes
Philippe Droz-Vincent
We argue that quantum theory in curved spacetime should be invariant under the continuous spacetime symmetries thaat are connected with the identity. For typical warped-product spa…
gr-qc1998
Isometric invariance of the positive-frequency kernel in generalized FRW-like spacetimes
Ph. Droz-Vincent
Klein-Gordon equation with minimal coupling in FRW-like spacetimes with compact but not necessarily isotropic neither homogeneous space sections. Beside exceptional cases, the kern…
gr-qc1998
Invariance of Positive-Frequency Kernels in Generalized FRW Spacetimes
Ph. Droz-Vincent
We consider the Klein-Gordon equation in FRW-like spacetimes, with compact space sections (not necessarily isotropic neither homogeneous). The bi-scalar kernel allowing to select t…