Feynman diagrams are incredibly useful, but they're a perturbative (i.e., approximate) approach to calculating, and quantum field theory often yields fascinating, unique results when you take a ...

Feynman Diagrams. The equations of quantum field theory allow us to calculate the behaviour of subatomic particles by expressing them as vibrations in quantum fields.

So, yeah, quantum field theory is a type of madness. An again, we've been down that rabbit hole. In particular, we've looked a bit at Feynman diagrams, which are our best tool for dealing with the ...

We all love Richard Feynman, but his diagrams may have to go. We all love Richard Feynman, ... Arkani-Hamed and Trnka hope to gain a deeper understanding of the nature of quantum field theory.

In current quantum field theory, causality is typically defined by the vanishing of field commutators for spacelike separations. Two researchers at the University of Massachusetts and Universidade ...

But no, quantum fields do not interact with matter. Quantum fields are matter. In a quantum field theory, what we perceive as particles are excitations of the quantum field itself.

/ FromQuarkstoQuasars / Amplituhedron / Feynman Diagrams / Quantum Mechanics. ... This was an expression computers of the time could handle, and quantum field theory got a little more manageable.

Quantum field theory marries the ideas of other quantum theories to depict all particles as “excitations” that arise in underlying fields. The British physicist Paul Dirac started the ball ...

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

Indeed, the most accurate physical theory yet devised is quantum electrodynamics, the quantum field theory account of electricity, magnetism, and light, and it owes its great success to weak coupling.