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116 papers · 1 filter
Lagrangian Multiform for Cyclotomic Gaudin Models
Vincent Caudrelier, Anup Anand Singh, Benoît Vicedo
We construct a Lagrangian multiform for the class of cyclotomic (rational) Gaudin models by formulating its hierarchy within the Lie dialgebra framework of Semenov-Tian-Shansky and…
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…
Modified Green-Hyperbolic Operators
Christopher J. Fewster
Green-hyperbolic operators - partial differential operators on globally hyperbolic spacetimes that (together with their formal duals) possess advanced and retarded Green operators…
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…
Quantum energy inequalities in integrable models with several particle species and bound states
Henning Bostelmann, Daniela Cadamuro, Jan Mandrysch
We investigate lower bounds to the time-smeared energy density, so-called quantum energy inequalities (QEI), in the class of integrable models of quantum field theory. Our main res…
On the mass dependence of the modular operator for a double cone
Henning Bostelmann, Daniela Cadamuro, Christoph Minz
We present a numerical approximation scheme for the Tomita-Takesaki modular operator of local subalgebras in linear quantum fields, working at one-particle level. This is applied t…