Hidde Stoffels

activity

20242026

collaborators

3 papers

hep-th2026

The EEC-Hedron: Positivity Bounds on Energy Correlators

Bianka Meçaj, Ian Moult, Hidde Stoffels +2

We study the constraints placed by energy positivity on general unitary quantum field theories. We show that the coefficients in the partial wave expansion of energy-energy correla…

hep-th2025

On the positivity of light-ray operators

Ben Freivogel, Hidde Stoffels

We consider light-ray operators $L_{2 n} = \int d x^{+} (x^{+})^{2 n} T_{++}$ , where $x^{+}$ is a null coordinate and $n$ a positive integer, in QFT in Minkowski spacetime…

hep-th2024

Positive thinking: A search for energy conditions

Hidde Stoffels

Energy conditions are attempts to summarise the properties of realistic descriptions of matter via constraints on the energy-momentum tensor. This is, for example, useful when one…