069
Entanglement
Two records that are each pure noise, and always opposite when laid side by side.
Field
Detail
Study
069
Chapter
Quantum basics
Equation
|ψ⟩ = (|↑↓⟩ − |↓↑⟩)/√2
What moves
N, the number of pairs
Structure
Film
Colour means
the result, up or down
Posted
One particle splits into two, measured far apart along the same axis. Each result lands as a dot on one of two sheets, blue for up, violet for down, 400 pairs in all. Read alone, either sheet is noise: a coin toss with no pattern. Remove one sheet and the other does not change at all. Bring them together and every pair cancels into one flat white surface. Each answer on its own is random; the relation between the two never changes.