A positive formalism for quantum theory in the general boundary formulation
Robert Oeckl (CCM-UNAM)
TL;DR
This paper introduces a positive formalism for quantum theory within the general boundary formulation, enhancing interpretability and compatibility with quantum information theory.
Contribution
It develops a new positive formalism that simplifies the probability interpretation and removes irrelevant structures in the general boundary approach to quantum theory.
Findings
More natural probability interpretation
Elimination of operationally irrelevant structures
Enhanced compatibility with quantum information theory
Abstract
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 formulation. This makes the probability interpretation more natural and elegant, eliminates operationally irrelevant structure and opens the general boundary formulation to quantum information theory.
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