Global and local aspects of causality in quantum mechanics

TL;DR

This paper explores how a global, timeless perspective on spacetime can shed light on the causality mysteries in quantum mechanics, emphasizing the role of global consistency in understanding quantum effects.

Contribution

It introduces a global, 'bird's view' approach to quantum causality, offering a new perspective on the interpretation of quantum effects and their relation to initial conditions.

Findings

Global, timeless view clarifies quantum causality mysteries

Global consistency explains quantum effects

Reinterprets initial conditions in quantum mechanics

Abstract

Quantum mechanics forces us to reconsider certain aspects of classical causality. The 'central mystery' of quantum mechanics manifests in different ways, depending on the interpretation. This mystery can be formulated as the possibility of selecting part of the initial conditions of the Universe 'retroactively'. This talk aims to show that there is a global, timeless, 'bird's view' of the spacetime, which makes this mystery more reasonable. We will review some well-known quantum effects from the perspective of global consistency.