Detector-Plane Causality in Quantum Measurement: Concept Paper - Handout

This handout provides a concise overview of the Detector-Plane Causality framework for quantum measurement. The framework introduces the Quantum Measurement Stack (QMS), a causally ordered instrumentation model that represents a quantum experiment as a structured measurement pipeline. Within this model, the detector plane defines the effective measurement boundary and includes the detector material, analog front-end electronics, digitization hardware, firmware, and signal analysis software. Correlations lost at this stage are irreversibly removed from the measurement process and cannot be recovered through later data processing. The handout also summarizes QMCTB-01, a detector-plane benchmark designed to evaluate how detector systems preserve or discard coherence in interference experiments such as the double-slit configuration. This document serves as a compact conceptual and instrumentation overview of the framework and its benchmark for researchers working in quantum optics, detector instrumentation, and quantum measurement systems