A Brief Review of the "ETH-Approach to Quantum Mechanics"

TL;DR

This paper reviews the ETH-Approach to Quantum Mechanics, which offers a coherent interpretation focusing on events and measurements without observers, and discusses its implications for understanding quantum state evolution.

Contribution

It introduces the ETH-Approach as a logically consistent framework for quantum events and measurements, avoiding the observer-centric perspective common in traditional interpretations.

Findings

Provides a coherent interpretation of quantum events and measurements.

Describes the stochastic evolution of quantum states.

Comments on the theory of weak and indirect measurements.

Abstract

To begin with, some of the conundrums concerning Quantum Mechanics and its interpretation(s) are recalled. Subsequently, a sketch of the "ETH-Approach to Quantum Mechanics" is presented. This approach yields a logically coherent quantum theory of "events" featured by physical systems and of direct or projective measurements of physical quantities, without the need to invoke "observers". It enables one to determine the stochastic time evolution of states of physical systems. We also briefly comment on the quantum theory of indirect or weak measurements, which is much easier to understand and more highly developed than the theory of direct (projective) measurements. A relativistic form of the ETH-Approach will be presented in a separate paper.