79 citations · 386 across the 23 of their papers we have counts for
23 papers
A Perspective on Constructive Quantum Field Theory
Stephen J. Summers
An overview of the accomplishments of constructive quantum field theory is provided.
Warped Convolutions, Rieffel Deformations and the Construction of Quantum Field Theories
Detlev Buchholz, Gandalf Lechner, Stephen J. Summers
Warped convolutions of operators were recently introduced in the algebraic framework of quantum physics as a new constructive tool. It is shown here that these convolutions provide…
Subsystems and Independence in Relativistic Microscopic Physics
Stephen J. Summers
The analyzability of the universe into subsystems requires a concept of the "independence" of the subsystems, of which the relativistic quantum world supports many distinct notions…
When are quantum systems operationally independent?
Miklos Redei, Stephen J. Summers
We propose some formulations of the notion of "operational independence" of two subsystems of a larger quantum system and clarify their relation to other independence concepts in t…
Warped Convolutions: A Novel Tool in the Construction of Quantum Field Theories
Detlev Buchholz, Stephen J. Summers
Recently, Grosse and Lechner introduced a novel deformation procedure for non-interacting quantum field theories, giving rise to interesting examples of wedge-localized quantum fie…
"On the Impossibility of a Poincare-Invariant Vacuum State with Unit Norm" Refuted
Stephen J. Summers
Assertions made in a document recently deposited in the arXiv are refuted.