Quantum models of classical world

TL;DR

This paper reviews recent progress in quantum mechanics addressing classical properties, measurement, and interpretation issues, proposing new ideas that link objective properties to high entropy states and distinguish detectors from ancillas.

Contribution

It introduces four novel ideas that advance understanding of quantum-classical transition, measurement disturbance, and the nature of objective properties in quantum systems.

Findings

Objective properties linked to quantum states rather than observables

Classical properties emerge from high entropy macroscopic states

Measurement processes involve disturbance and dissipation in detectors

Abstract

This paper is a review of our recent work on three notorious problems of non-relativistic quantum mechanics: realist interpretation, quantum theory of classical properties and the problem of quantum measurement. A considerable progress has been achieved, based on four distinct new ideas. First, objective properties are associated with states rather than with values of observables. Second, all classical properties are selected properties of certain high entropy quantum states of macroscopic systems. Third, registration of a quantum system is strongly disturbed by systems of the same type in the environment. Fourth, detectors must be distinguished from ancillas and the states of registered systems are partially dissipated and lost in the detectors. The paper has two aims: a clear explanation of all new results and a coherent and contradiction-free account of the whole quantum mechanics including all necessary changes of its current textbook version.