Commutator Geometry and Information Preservation in the Quantum Switch

arXiv:2609.21310 · quant-ph · Submitted 2026-09-18 · Read on arXiv

quant-ph

Submitted: 2026-09-18

Updated: 2026-09-18

Terminology

• Fidelity — 57× in this paper · explained in 2 episodes
• Entanglement — 12× in this paper · explained in 3 episodes
• Fisher Information — 9× in this paper · explained in 3 episodes
• Trace — 8× in this paper · explained in 2 episodes
• Information Gain — 3× in this paper · explained in 2 episodes
• Quantum Fisher Information (QFI) — 2× in this paper · explained in 13 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Clustering — 1× in this paper · explained in 2 episodes
• Process tomography — 1× in this paper · explained in 2 episodes
• Trace Distance — 1× in this paper · explained in 3 episodes
• Verification — 1× in this paper · explained in 2 episodes

Sources

• Quantum communication in a superposition of causal orders

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