QUANTUM
DISCORD
Stern–Gerlach Explorer
Choose a measurement axis
Quantum State
Unprepared
Prediction
What will you observe?
100% Up
50 – 50
100% Down
Challenge
Show answer ▾
Show Bloch sphere ▾
State: Unprepared
↺ Reset experiment
ATOM SOURCE
Silver atoms — spin state unprepared
SG Magnet 1
?
Z
X
Y
Run experiment →
50%
↑ UP
BLOCKED
Keep ↑
✓ Kept
50%
↓ DOWN
BLOCKED
Keep ↓
✓ Kept
SG Magnet 2
?
Z
X
Y
Run experiment →
—
↑ UP
—
↓ DOWN
Continue with this prepared state →
Live Statistics
↑ UP
—
↓ DOWN
—
Atom Counts
↑ UP detector
0
↓ DOWN detector
0
Mathematics
Why these probabilities?
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Experiment Log
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