11 citations · 11 across the 2 of their papers we have counts for
5 papers · 1 filter
Massless QFT and the Newton-Wigner Operator
Albert Much
In this work, the second-quantized version of the spatial-coordinate operator, known as the Newton-Wigner-Pryce operator, is explicitly given w.r.t. the massless scalar field. More…
Remarks on QFT in the Coordinate Space
Albert Much
Generators of the Poincaré group, for a free massive scalar field, are usually expressed in the momentum space. In this work we perform a transformation of these generators into th…
Strict Almost Non-Abelian Deformations
A. Much
An almost non-abelian extension of the Rieffel deformation is presented in this work. The non-abelicity comes into play by the introduction of unitary groups which are dependent of…
Isospectral Deformations in QFT: The Massive case
Albert Much
We consider isospectral deformations of quantum field theories by using the novel construction tool of warped convolutions. The deformation enables us to obtain a variety of models…
Quantum Mechanical Effects from Deformation Theory
Albert Much
We consider deformations of quantum mechanical operators by using the novel construction of warped convolutions. The deformation enables us to obtain several quantum mechanical eff…