We discuss a novel framework for physical theories that is based on the principles of locality
and operationalism. It generalizes and unifies previous frameworks, including the standard …

We introduce a new “positive formalism” for encoding quantum theories in the general
boundary formulation, somewhat analogous to the mixed state formalism of the standard …

We show that in Oeckl's boundary formalism the boundary vectors that do not have a tensor
form represent, in a precise sense, statistical states. Therefore the formalism incorporates …

We extend the framework of general boundary quantum field theory (GBQFT) to achieve a
fully local description of realistic quantum field theories. This requires the quantization of non …

The general boundary formulation of quantum field theory is applied to a massive scalar
field in two-dimensional Rindler space. The field is quantized according to both the …

Hilbert spaces of states can be constructed in standard quantum field theory only for
infinitely extended spacelike hypersurfaces, precluding a more local notion of state. In fact …

We show that the Wightman function of a free quantum field generates any complete set of
solutions of the relativistic wave equations. Using this approach, we construct the complete …

We give a brief introduction to the so-called general boundary formulation (GBF) of quantum
theory. This new axiomatic formulation provides a description of the quantum dynamics …

We discuss how to formulate a condition for choosing the vacuum state of a quantum scalar
field on a timelike hyperplane in the general boundary formulation using the coupling to an …

The determination of the electromagnetic field generated by a charge in hyperbolic motion is
a classical problem for which the majority view is that the Liénard-Wiechert solution which …