The Standard-Model Extension provides a framework for testing CPT and Lorentz symmetries by including all operators that break them in an effective field theory.
John Ellis reflects on 50 years at the forefront of theoretical high-energy physics - and whether the field is ripe for a paradigm shift.
The 2020s will sort current anomalies in fundamental physics into discoveries or phantoms, says Ben Allanach.
Explaining the bizarre pattern of fermion types and masses has led theorists to suggest that the “flavour scale” could be at a much lower energy than previously thought.
Carlo Rovelli reports on a conference which brought together two communities that have evolved independently for many years.
In 1997, Juan Maldacena conjectured a deep relationship between gravity and quantum field theory.
Graham Farmelo’s new book sheds light on the current debate on the role of mathematics in theoretical physics, says CERN's former head of theory, Wolfgang Lerche.
The meeting was sponsored by the Humboldt Foundation, based in Bonn, whose mission is to promote cooperation between scientists in Germany and elsewhere.
A field configuration is topologically non-trivial if it exhibits the topology of a “mathematical knot” in some space, real or otherwise.
We have conquered the easiest challenges in fundamental physics, says Nima Arkani-Hamed. The case for building the next major collider is now more compelling than ever.