Testing Causal Quantum Theory

TL;DR

Causal quantum theory posits that measurements are localized, unreliable processes influencing only future light cone outcomes, and this paper explores its implications and potential experimental tests.

Contribution

The paper analyzes the consistency of causal quantum theory with existing experiments and proposes ways to test its unique predictions.

Findings

Causal quantum theory is not obviously inconsistent with current experiments.

The theory implies specific experimental signatures that can be tested.

Implications of the theory challenge conventional quantum measurement assumptions.

Abstract

Causal quantum theory assumes that measurements or collapses are well-defined physical processes, localised in space-time, and never give perfectly reliable outcomes and that the outcome of one measurement only influences the outcomes of others within its future light cone. Although the theory has unusual properties, it is not immediately evident that it is inconsistent with experiment to date. I discuss its implications and experimental tests.