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20012025
most citedA new light on nets of C*-algebras and their representations

16 citations · 125 across the 34 of their papers we have counts for

collaborators

36 papers

math-ph2025

Charges in light cones and quenched infrared radiation

Detlev Buchholz, Fabio Ciolli, Giuseppe Ruzzi +1

The creation of electrically charged states and the resulting electromagnetic fields are considered in space-time regions in which such experiments can actually be carried out, nam…

math-ph2024

Twisting factors and fixed-time models in quantum field theory

Ezio Vasselli

We construct a class of fixed-time models in which the commutations relations of a Dirac field with a bosonic field are non-trivial and depend on the choice of a given distribution…

math.OA2024★ 2 cited

Twisted tensor products of field algebras

Ezio Vasselli

Let A be a C*-algebra, h a Hilbert space and C the CAR algebra over h. We construct a twisted tensor product of A by C such that the two factors are not necessarily one in the rela…

math-ph2023

Where charged sectors are localizable: a viewpoint from covariant cohomology

Fabio Ciolli, Giuseppe Ruzzi, Ezio Vasselli

Given a Haag-Kastler net on a globally hyperbolic spacetime, one can consider a family of regions where quantum charges are supposed to be localized. Assuming that the net fulfils…

math-ph2022★ 1 cited

Gauss's law, the manifestations of gauge fields, and their impact on local observables

Detlev Buchholz, Fabio Ciolli, Giuseppe Ruzzi +1

Within the framework of the universal algebra of the electromagnetic field, the impact of globally neutral configurations of external charges on the field is analyzed. External cha…

math-ph2021★ 6 cited

The universal algebra of the electromagnetic field III. Static charges and emergence of gauge fields

Detlev Buchholz, Fabio Ciolli, Giuseppe Ruzzi +1

A universal C*-algebra of gauge invariant operators is presented, describing the electromagnetic field as well as operations creating pairs of static electric charges having opposi…