42 citations · 49 across the 5 of their papers we have counts for
6 papers
Algebraic Quantum Field Theory
Kasia Rejzner
Algebraic quantum field theory describes a quantum system through its observables, their localisation in spacetime, and the states that assign them expectation values. The separati…
Perturbative algebraic quantum field theory with smoothened boundary
Kasia Rejzner, Michele Schiavina
We formulate quantisation of gauge field theories on globally hyperbolic Lorentzian manifolds with marked hypersurfaces within the framework of perturbative algebraic quantum field…
Semi-local observables, edge modes and quantum reference frames in quantum electromagnetism: an algebraic approach
Christopher J. Fewster, Daan W. Janssen, Kasia Rejzner
Boundaries and corners of spacetime play a vital role in understanding physical concepts including entanglement entropy, the infrared problem in QFT and quantum gravity. Standard l…
Quantum reference frames, measurement schemes and the type of local algebras in quantum field theory
Christopher J. Fewster, Daan W. Janssen, Leon Deryck Loveridge +2
We develop an operational framework, combining relativistic quantum measurement theory with quantum reference frames (QRFs), in which local measurements of a quantum field on a bac…
A novel class of functionals for perturbative algebraic quantum field theory
Eli Hawkins, Kasia Rejzner, Berend Visser
Perturbative Algebraic Quantum Field Theory (pAQFT) is based upon formal power series valued in spaces of functionals. This is usually done with microcausal functionals, which are…
A Lorentzian renormalisation group equation for gauge theories
Edoardo D'Angelo, Kasia Rejzner
In a recent paper, with Drago and Pinamonti we have introduced a Wetterich-type flow equation for scalar fields on Lorentzian manifolds, using the algebraic approach to perturbativ…