Nancy Cartwright and the Logic of Quantum Mechanics

TL;DR

This paper critiques Nancy Cartwright's classical logic-based approach to quantum measurement, highlighting its shortcomings in addressing quantum duality and discussing recent experiments that shed light on quantum foundations.

Contribution

It challenges Cartwright's proposals by emphasizing the fundamental duality of quantum objects and introduces recent experimental insights into quantum mechanics foundations.

Findings

Recent experiments illuminate quantum duality issues.

Classical logic is insufficient for quantum foundations.

Dialectical materialism offers a new interpretative framework.

Abstract

This paper deals with Nancy Cartwright's views on the measurement problem in Quantum Mechanics, as exposed in her book {\it{How the Laws of Physics Lie}}. She does not accept the logic of Quantum Mechanics. It is argued that her proposals, which are at variance with many facts results and epistemics of Quantum Mechanics are the result of her choice of classical logic, which leads her to propose the transition rate as the fundamental object of Quantum Mechanics. I argue that this is incorrect. The positions which Nancy Cartwright defends on the reduction of the wave packet do not address the fundamental issue, i.e. the duality of a world where quantum and classical objects coexist and interact. I suggest that the main problem with Nancy Cartwright's positions is her difficulty in accepting that the contradiction at the basis of Quantum Mechanics, i.e. the simultaneous corpuscular and wave-like nature of quantum objects, is a fact of nature. Recent experiments, described in this paper, shed a new light on the foundations of Quantum Mechanics and on the topic of this paper. The limits of the no-contradiction principle are discussed; modern dialectical materialism is argued to offer a useful framework for the interplay between knowledge and reality.