Quantum field theory on noncommutative spaces

R Wulkenhaar - Advances in Noncommutative Geometry: On the …, 2019 - Springer
This survey tries to give a rigorous definition of Euclidean quantum field theory on a fairly
large class of noncommutative geometries, namely nuclear AF Fréchet algebras. After a …

The principle of locality: Effectiveness, fate, and challenges

S Doplicher - Journal of mathematical physics, 2010 - pubs.aip.org
The special theory of relativity and quantum mechanics merge in the key principle of
quantum field theory, the principle of locality. We review some examples of its …

Gauge theories on deformed spaces

DN Blaschke, E Kronberger, RIP Sedmik… - … and Geometry: Methods …, 2010 - emis.de
The aim of this review is to present an overview over available models and approaches to
non-commutative gauge theory. Our main focus thereby is on gauge models formulated on …

Quantum spacetime: a disambiguation

G Piacitelli - SIGMA. Symmetry, Integrability and Geometry: Methods …, 2010 - emis.de
We review an approach to non-commutative geometry, where models are constructed by
quantisation of the coordinates. In particular we focus on the full DFR model and its …

Solvable limits of a 4D noncommutative QFT

H Grosse, R Wulkenhaar - arxiv preprint arxiv:1306.2816, 2013 - arxiv.org
In previous work we have shown that the (\theta->\infty)-limit of\phi^ 4_4-quantum field
theory on noncommutative Moyal space is an exactly solvable matrix model. In this paper we …

Quantum field theory in static external potentials and Hadamard states

M Wrochna - Annales Henri Poincaré, 2012 - Springer
We prove that the ground state for the Dirac equation on Minkowski space in static, smooth
external potentials satisfies the Hadamard condition. We show that it follows from a condition …

Wick rotation for quantum field theories on degenerate Moyal space (-time)

H Grosse, G Lechner, T Ludwig, R Verch - Journal of Mathematical …, 2013 - pubs.aip.org
In this paper the connection between quantum field theories on flat noncommutative space (-
times) in Euclidean and Lorentzian signature is studied for the case that time is still …

Calculating Pauli–Jordan function

D Liu, F Chen, S Chen, N Ma - European Journal of Physics, 2020 - iopscience.iop.org
A derivation of the space-time expression of the Pauli–Jordan function (PJF) was shown and
a more compact result was obtained. Compared to other derivations, the approach utilizes …

Aspects of perturbative quantum field theory on non-commutative spaces

DN Blaschke - arxiv preprint arxiv:1601.03109, 2016 - arxiv.org
In this contribution to the proceedings of the Corfu Summer Institute 2015, I give an overview
over quantum field theories on non-commutative Moyal space and renormalization. In …

On the renormalization of non-commutative field theories

DN Blaschke, T Garschall, F Gieres, F Heindl… - The European Physical …, 2013 - Springer
This paper addresses three topics concerning the quantization of non-commutative field
theories (as defined in terms of the Moyal star product involving a constant tensor describing …