152 citations · 2.3k across the 94 of their papers we have counts for
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Probability Distribution for Vacuum Energy Flux Fluctuations in Two Spacetime Dimensions
Christopher J. Fewster, L. H. Ford
The probability distribution for vacuum fluctuations of the energy flux in two dimensions will be constructed, along with the joint distribution of energy flux and energy density.…
Quantum Energy Inequalities along stationary worldlines
Christopher J. Fewster, Jacob Thompson
Quantum energy inequalities (QEIs) are lower bounds on the averaged energy density of a quantum field. They have been proved for various field theories in general curved spacetimes…
Probability Distributions for Space and Time Averaged Quantum Stress Tensors
Christopher J. Fewster, L. H. Ford
We extend previous work on quantum stress tensor operators which have been averaged over finite time intervals to include averaging over finite regions of space as well. The space…
Explicit examples of probability distributions for the energy density in two-dimensional conformal field theory
Matthew C. Anthony, Christopher J. Fewster
Measurements of a weighted energy density average taken in the vacuum state of a conformal field theory in dimensions are randomly distributed with vanishing expectation valu…
Algebraic Quantum Field Theory -- an introduction
Christopher J. Fewster, Kasia Rejzner
We give a pedagogical introduction to algebraic quantum field theory (AQFT), with the aim of explaining its key structures and features. Topics covered include: algebraic formulati…
Vacuum Quantum Stress Tensor Fluctuations: A Diagonalization Approach
Enrico D. Schiappacasse, Christopher J. Fewster, L. H. Ford
Large vacuum fluctuations of a quantum stress tensor operator can be described by the asymptotic behavior of the probability distribution of the time or spacetime averaged operator…
Probability Distributions for Quantum Stress Tensors Measured in a Finite Time Interval
Christopher J. Fewster, L. H. Ford
A meaningful probability distribution for measurements of a quantum stress tensor operator can only be obtained if the operator is averaged in time or in spacetime. This averaging…
Generalised Point Interactions for the Radial Schrodinger Equation via Unitary Dilations
C. J. Fewster
We present an inverse scattering construction of generalised point interactions (GPI) -- point-like objects with non-trivial scattering behaviour. The construction is developed for…
Unitarity of Quantum Theory and Closed Time-Like Curves
C. J. Fewster, C. G. Wells
Interacting quantum fields on spacetimes containing regions of closed timelike curves (CTCs) are subject to a non-unitary evolution . Recently, a prescription has been proposed,…
On the Energy Levels of the Hydrogen Atom
C. J. Fewster
We re-examine the justification for the imposition of regular boundary conditions on the wavefunction at the Coulomb singularity in the treatment of the hydrogen atom in non-relati…