86 citations · 2.6k across the 222 of their papers we have counts for
10 papers · 1 filter
The Role of Elliptic Operators in the Initial-Value Problem for General Relativity
Giampiero Esposito, Cosimo Stornaiolo
The Arnowitt-Deser-Misner (ADM) equations are deeply intertwined with discrete spectral resolutions of an elliptic operator of Laplace type associated with the spacelike hypersurfa…
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.
On the occurrence of mass in field theory
Giampiero Esposito
This paper proves that it is possible to build a Lagrangian for quantum electrodynamics which makes it explicit that the photon mass is eventually set to zero in the physical part…
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…
Casimir Energy in the Axial Gauge
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…
Quantum Field Theory from First Principles
Giampiero Esposito
When quantum fields are studied on manifolds with boundary, the corresponding one-loop quantum theory for bosonic gauge fields with linear covariant gauges needs the assignment of…