A. Neumaier's latest activity

In flat space the Wightman axioms, in curved space a curved version of the Haag-Kastler axioms.

This is a misunderstanding. Indeed, a requirement in the Yang-Mills problem is to satisfy the Wightman axioms or something stronger. We...

It lacks the constraints that turn an operator valued distribution into a quantum field. There is no single, all-encompassing...

I would look at Folland's book or Talagrand's "What is a quantum field theory".

The best paper that formulates the measurement problem in a way that is clearer than current formulations is Muller, F. A. (2023). Six...

...because after calculation, every user (as long as shutting up = not using the word 'interpretation' ) is allowed to interpret the...

All arguments in textbooks and the research literature are based on classical logic. Nothing at all in quantum theory is deduced by...

Not quite. One still has to find the infinite sequence of invariant subspaces of the Hamiltonian, which gives rise to the triangular...

Try my book on algebraic quantum physics, it might convince you of the opposite!

Indeed, relativistic multiparticle quantum mechanics is consistent (and useful) but has, compared to relativistic quantum field theory...

In differential geometry, there is a covariant concept of a 4-vector, and the momentum vector is such a 4-vector. Only the coordinates...

1. Local and global symmetries are essentially different concepts. Electromagnetism has a local U(1) gauge symmetry that is essential to...