Quantum Measurements, faster-than-light communication, minimum size for the detector implied by quantum mechanics

TL;DR

This paper explores a quantum interference setup that challenges the No-Communication theorem and derives a quantum-mechanical relation limiting detector size based on particle state width.

Contribution

It introduces a novel interference configuration that questions existing no-communication principles and establishes a minimum detector size constraint.

Findings

The setup appears to enable faster-than-light communication.

A quantum-mechanical relation constrains detector size based on particle state.

The proposed flaw in the setup is critically analyzed.

Abstract

We describe an interference setup which seems to defy the No-Communication theorem. We discuss its potential flaw and derive a relation implied by quantum mechanics that limits the size of the detector given the particle's state width.