411 citations · 1k across the 22 of their papers we have counts for
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gr-qc1998
Two-boundary problems in Euclidean quantum gravity
Giampiero Esposito, Alexander Yu. Kamenshchik
Recent work in the literature has studied a new set of local boundary conditions for the quantized gravitational field, where the spatial components of metric perturbations, and gh…
hep-th1998
Casimir Effect in Problems with Spherical Symmetry: New Perspectives
Giampiero Esposito, Alexander Yu. Kamenshchik, Klaus Kirsten
Since the Maxwell theory of electromagnetic phenomena is a gauge theory, it is quite important to evaluate the zero-point energy of the quantized electromagnetic field by a careful…