Entanglement
Intermediate · 1 lesson · 5 activities
The states that cannot be pulled apart into two independent qubits: how to spot one, what its measurement correlations look like, why correlation is not influence, and why entanglement comes in degrees rather than all-or-nothing.
Lessons
States that will not factor
Entanglement is not mystery or influence. It is the concrete fact that some two-qubit states cannot be written as one qubit times another.
5 activities · 14 min