01
Superposition
A linear combination of states. Before measurement, a system can have non-zero amplitudes for several outcomes.
03 • KEY IDEAS
Six concepts that make the quantum world come alive.
02
Entanglement
The joint state of two systems may not factor into independent states of the parts.
03
Tunneling
Quantum amplitude allows a particle to appear on the other side of a potential barrier.
04
Interference
Probability amplitudes add, enhancing some outcomes and suppressing others.
05
Uncertainty
Not all pairs of observables can simultaneously have arbitrarily precise values.
06
Quantization
Some physical quantities have discrete allowed values rather than a continuous spectrum.
MICRO INTERACTION
Observe a superposition
Amplitude ψ(x)mode: wave
QUICK QUIZ
Can you predict the quantum outcome?
One question. Pick the best answer and see the explanation.