Measurability of Bohmian Arrival-Time Distributions

Determine whether the spin-dependent Bohmian arrival-time distributions proposed for time-of-flight measurements are physically measurable by an appropriate detector.

Background

The chapter describes a dispute concerning proposed time-of-flight experiments in which Bohmian predictions for arrival-time distributions may differ from standard quantum-mechanical predictions. Goldstein and collaborators argue that no detector can realize the proposed measurement because the predicted statistics cannot be represented by a positive-operator-valued measure, while Das and collaborators challenge the measurability criterion. The chapter explicitly leaves this disagreement unresolved.