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Quantum Eraser

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About this simulation

Orthogonal H/V polarization marks the paths. A polarization analyzer sorts detection records into two groups. Selecting a displayed group preserves every recorded event. Conditional fringes cancel when combined. Sorting correlations neither changes the past nor enables faster-than-light communication.

What students can explore

  • Set the analyzer to 45°, scan the phase, and compare the two groups with all events.
  • The plus and minus groups have complementary fringes. Their combined D0 probability stays at 50%, whatever phase you choose.

Learning objectives

  1. 1Set the analyzer to 45°, scan the phase, and compare the two groups with all events.

Questions teachers ask

How does this work?

Orthogonal H/V polarization marks the paths. A polarization analyzer sorts detection records into two groups. Selecting a displayed group preserves every recorded event. Conditional fringes cancel when combined. Sorting correlations neither changes the past nor enables faster-than-light communication.

Embed this simulation

Drop it into your LMS, blog, or class site — free.

<iframe src="https://kiwibee.io/en/simulations/quantum-eraser-correlations-simulation/embed" title="Quantum Eraser | KiwiBee" loading="lazy" allowfullscreen style="width:100%;height:min(70vh,620px);min-height:420px;border:0;border-radius:16px"></iframe>

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