9 papers
A New Spectral Cancellation in Quantum Gravity
Giampiero Esposito, Guglielmo Fucci, Alexander Yu. Kamenshchik +1
A general method exists for studying Abelian and non-Abelian gauge theories, as well as Euclidean quantum gravity, at one-loop level on manifolds with boundary. In the latter case,…
Will LIGO see RIGO's? - Radion-induced graviton oscillations in the two-brane world
Andrei O. Barvinsky, Alexander Yu. Kamenshchik, Claus Kiefer +1
One of the most interesting features of braneworld models is the existence of massive gravitational modes in addition to the usual massless one. Mixing of the modes which depends n…
Boundary Effects in One-Loop Supergravity
Giampiero Esposito, Alexander Yu. Kamenshchik
A brief review is presented of motivations and results in one-loop supergravity on manifolds with boundary, whose consideration is suggested by quantum cosmology.
Casimir Energy in Non-Covariant Gauges
Giampiero Esposito, Alexander Yu. Kamenshchik, Klaus Kirsten
The zero-point energy of a conducting spherical shell is studied by imposing the axial gauge via path-integral methods, with boundary conditions on the electromagnetic potential an…
Conductivity of composite systems: perturbation theory and multidimensional chessboard
I. M. Khalatnikov, A. Yu. Kamenshchik
The paper was withdrawn by the authors
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…