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Quantum Repeater Network: Entanglement Swapping

Interactive quantum-repeater network simulator: chain entangled links across repeater stations, watch entanglement swapping extend an end-to-end Bell pair across a fiber-optic distance, and see fidelity decay with distance and imperfect swaps in real time.

Geology & Earth Science2DModerate60 FPS📱 Mobile-adapted🌍 Earth

Explore how a real quantum network stretches entanglement across distance. Fiber-optic photon loss is exponential, so a single elementary link only stays entangled for a few tens of kilometers — this simulator lets you insert repeater stations along a chain, tune each elementary link's length and each station's Bell-measurement fidelity, and watch the network perform entanglement swapping to weld short-range entangled pairs into one long-range Bell pair spanning the full chain. Live readouts track per-link fidelity, the end-to-end fidelity after all swaps (using the standard Werner-state visibility-multiplication model), and the chain's overall success probability, so you can see exactly why real quantum-internet proposals trade off repeater spacing against accumulated swap noise.

⚙ Under the hood

This simulation allows you to explore the complex architecture of quantum networks, visualizing how qubits are entangled and transmitted across vast distances. By manipulating network parameters, observe the effects on data transfer rates and potential vulnerabilities.

Quantum Networks

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install