83 citations · 480 across the 42 of their papers we have counts for
49 papers
Hadamard states for spacetimes with timelike boundaries
Alessandro Pietro Contini, Alexander Strohmaier
We formulate and prove existence of pure quasifree Hadamard states for the Klein--Gordon field with Dirichlet boundary condition on a globally hyperbolic spacetime with timelike bo…
Relative trace formulas for obstacle scattering with Neumann and transmission boundary conditions
Arne Hofmann, Alexander Strohmaier
We consider the case of scattering by several obstacles in for . We establish a relative trace formula for Neumann and transmission boundary conditions ana…
On the construction of Hadamard states from Feynman propagators
Christopher J. Fewster, Alexander Strohmaier
The Wightman two-point function of any Hadamard state of a linear quantum field theory determines a corresponding Feynman propagator. Conversely, however, a Feynman propagator dete…
An analytic approach to the stress energy tensor in quantum field theory
Alexander Strohmaier
We discuss a framework for quantum fields in curved spacetimes that possess a stress energy tensor as a connection one form on a suitable moduli space of metrics. In generic spacet…
Dimensional reduction formulae for spectral traces and Casimir energies
Alexander Strohmaier
This short letter considers the case of acoustic scattering by several obstacles in for of the form , where is a smooth bo…
Heat and Wave kernel expansions for stationary spacetimes
Alexander Strohmaier, Steve Zelditch
The generator of time-translations on the solution space of the wave equation on stationary spacetimes specialises to the square root of the Laplacian on Riemannian manifolds when…