Comment on Consistent Interpretation of Quantum Mechanics Using Quantum Trajectories

TL;DR

This paper critiques Griffiths' generalization of the consistent history approach, arguing that it only admits trivial families and thus does not advance the interpretation of quantum mechanics beyond standard measurement theory.

Contribution

It demonstrates that Griffiths' noninterference conditions only allow trivial families, challenging the effectiveness of his proposed generalization.

Findings

All possible complete families satisfying Griffiths' conditions are trivial.

Griffiths' approach does not extend the interpretative framework beyond existing quantum measurement theory.

The critique suggests limitations in Griffiths' generalization of the consistent history approach.

Abstract

Recently, Griffiths presented a generalization of the consistent history approach to quantum mechanics. I can easily construct all possible complete families satisfying Griffiths' "noninterference conditions". Since only trivial families exist one may conclude that Griffiths' proposal has not got farther than the ordinary theory of quantum measurement.