Universal Fidelity Law for Linear-Optical Entangling Gates

arXiv:2609.25861 · quant-ph, physics.atom-ph, physics.optics · Submitted 2026-09-22 · Read on arXiv

quant-ph, physics.atom-ph, physics.optics

Submitted: 2026-09-22

Updated: 2026-09-22

Terminology

• Fidelity — 52× in this paper · explained in 2 episodes
• Trace — 6× in this paper · explained in 2 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• Decode — 2× in this paper · explained in 2 episodes
• Entanglement — 2× in this paper · explained in 3 episodes
• Post-Selection — 1× in this paper · explained in 2 episodes

Sources

• Highly indistinguishable photons from a tin-vacancy spin qubit in diamond
• High-Fidelity Integrated Quantum Photonic Logic Via Robust Directional Couplers
• High fidelity CNOT gates in photonic integrated circuits using composite segmented directional couplers
• Understanding photonic quantum-logic gates: The road to fault tolerance

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