Quantum Mechanics from Operational Composition: Tensor Product Structure and Local Discriminability from Causal Invariance and Disjoint Composition

Key Points

• The aim is to derive tensor product structure and local discriminability using two axioms within an operational framework.
• Derives principles based on causal invariance and disjoint composition axiom.
• Establishes the necessity of both axioms for tensor product structure.
• Explores operational framework to analyze quantum mechanics.
• Causal invariance alone does not necessitate composition.
• Provides a two-axiom derivation enhancing understanding of quantum mechanics.