2 papers
math-ph2016
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…
math-ph2016
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…