An order-theoretic quantification of contextuality

TL;DR

This paper introduces an order-theoretic framework to quantify quantum contextuality, linking it to thermodynamic entropy and the second law, offering a novel perspective on quantum foundations.

Contribution

It develops a new order-theoretic method for quantifying contextuality and connects it to the second law of thermodynamics, bridging quantum theory and thermodynamics.

Findings

Order-theoretic notion of contextuality analogous to topos-theoretic Kochen-Specker theorem

Quantification method for contextuality based on order theory

Proposed relation between quantum measurement entropy and the second law

Abstract

In this essay, I develop order-theoretic notions of determinism and contextuality on domains and topoi. In the process, I develop a method for quantifying contextuality and show that the order-theoretic sense of contextuality is analogous to the sense embodied in the topos-theoretic statement of the Kochen-Specker theorem. Additionally, I argue that this leads to a relation between the entropy associated with measurements on quantum systems and the second law of thermodynamics. The idea that the second law has its origin in the ordering of quantum states and processes dates to at least 1958 and possibly earlier. The suggestion that the mechanism behind this relation is contextuality, is made here for the first time.