Preferred Frame versus Multisimultaneity: meaning and relevance of a forthcoming experiment

TL;DR

The paper discusses how upcoming experiments could determine whether a preferred frame exists in quantum mechanics, potentially allowing superluminal communication if confirmed.

Contribution

It proposes that experiments with moving beam-splitters can distinguish between the Preferred Frame and Multisimultaneity interpretations of quantum mechanics.

Findings

Quantum Mechanics suggests a preferred frame due to collapse at detection

Upcoming experiments can differentiate between Preferred Frame and Multisimultaneity

If Preferred Frame is confirmed, superluminal communication could be possible

Abstract

It is argued that: 1) Quantum Mechanics implies the preferred frame also because of the collapse delayed at detection, 2) forthcoming experiments with moving beam-splitters will allow us to decide between Preferred Frame and Multisimultaneity, and 3) if the Preferred Frame prevails, superluminal communication is in principle possible.