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Quantum Entanglement Lab

Quantum Entanglement Simulator — Bell States & CHSH Test

This quantum entanglement lab covers four phenomena central to quantum information. Bell States mode shows two Bloch-sphere diagrams linked by an entanglement line with a running measurement histogram and E(A,B) correlation. CHSH Test mode computes the S value from quantum correlations vs. angle difference and shows whether the classical bound is violated. Teleportation mode steps through the full quantum teleportation protocol with fidelity readout. Decoherence mode displays a 4×4 density matrix heatmap and concurrence-vs-time graph showing entanglement sudden death.

What you can do in this simulation

  • Adjust detector angles θ_A and θ_B (0–π) with sliders
  • Switch between Bell States, CHSH Test, Teleportation, and Decoherence modes
  • Watch measurement histograms and E(A,B) correlation update live
  • View CHSH S value and classical bound violation indicator
  • See density matrix heatmap and concurrence decay in Decoherence mode

Concepts covered

quantum entanglement · Bell inequality · CHSH test · quantum teleportation · decoherence · Bloch sphere

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