57 citations · 226 across the 16 of their papers we have counts for
9 papers · 1 filter
The Effect of Boundaries in One-Loop Quantum Cosmology
Peter D. D'Eath, Giampiero Esposito
The problem of boundary conditions in a supersymmetric theory of quantum cosmology is studied, with application to the one-loop prefactor in the quantum amplitude. Our background c…
The Geometry of Complex Space-Times with Torsion
Giampiero Esposito
The necessary and sufficient condition for the existence of -surfaces in complex space-time manifolds with nonvanishing torsion is derived. For these manifolds, Lie brackets of…
Dirac Operator and Eigenvalues in Riemannian Geometry
Giampiero Esposito
The aim of the lectures is to introduce first-year Ph.D. students and research workers to the theory of the Dirac operator, spinor techniques, and their relevance for the theory of…
Boundary Terms for Massless Fermionic Fields
Giampiero Esposito, Hugo A. Morales-Tecotl, Giuseppe Pollifrone
Local supersymmetry leads to boundary conditions for fermionic fields in one-loop quantum cosmology involving the Euclidean normal to the boundary and a pair of independent spinor…
Twistors and Spin 3/2 Potentials in Quantum Gravity
Giampiero Esposito, Giuseppe Pollifrone
Local boundary conditions involving field strengths and the normal to the boundary, originally studied in anti-de Sitter space-time, have been recently considered in one-loop quant…
Quantization of Field Theories in the Presence of Boundaries
Giampiero Esposito
This paper reviews the progress made over the last five years in studying boundary conditions and semiclassical properties of quantum fields about 4-real-dimensional Riemannian bac…