Assessing Relational Quantum Mechanics

Understand

Relational Quantum Mechanics (RQM) is an interpretation of quantum theory based on the idea of abolishing the notion of absolute states of systems, in favor of states of systems relative to other systems.

• Such a move is claimed to solve the conceptual problems of standard quantum mechanics.
• Moreover, RQM has been argued to account for all quantum correlations without invoking non-local effects and, in spite of embracing a fully relational stance, to successfully explain how different observers exchange information.
• In this work, we carry out a thorough assessment of RQM and its purported achievements.