Does Quantum Mechanics imply influences acting backward in time in impact series experiments?

TL;DR

This paper proposes a two-particle experiment demonstrating that quantum mechanics suggests the possibility of influences acting backward in time, challenging traditional causality principles and distinguishing nonlocality from retrocausation.

Contribution

It introduces a novel experiment setup showing that quantum superposition implies retrocausation, providing insights into the relationship between nonlocality and causality.

Findings

Quantum superposition implies retrocausation possibilities.

Retrocausation can be distinguished from nonlocality.

The experiment challenges classical causality principles.

Abstract

A real two-particle experiment is proposed in which one of the particles undergoes two successive impacts on beam-splitters. It is shown that the standard quantum mechanical superposition principle implies the possibility of influences acting backward in time ("retrocausation"), in striking contrast with the principle of causality. It is argued that nonlocality and retrocausation are not necessarily entangled.