2 papers
gr-qc2025
Linear Response Analysis of the Semiclassical Approximation to Spin 1/2 Quantum Electrodynamics in 1+1 Dimensions
Ian M. Newsome, Paul R. Anderson, Eric M. Grotzke
An investigation of the validity of the semiclassical approximation to quantum electrodynamics in 1+1 dimensions is given. The criterion for validity used here involves the impact…
gr-qc2025
Quantum Effects in 3+1 Schwarzschild-de Sitter Spacetime: Properties of the Hadamard Function
Ian M. Newsome, Silvia Pla, Paul R. Anderson
In a four-dimensional Schwarzschild-de Sitter background, the spherically symmetric contribution to the Hadamard two-point correlation function is computed for a massles…