Superposition
|ψ⟩ = α|0⟩ + β|1⟩
X-Qubit
ψ = superposition
t = undefined
|α|² + |β|² = 1
Hilbert space: ℂ²
Basis: {|0⟩, |1⟩}
T₂ coherence
observer: absent
state: unknown
Pauli-X gate
|0⟩ → |1⟩
|1⟩ → |0⟩
|ψ⟩
A qubit exists in superposition —
simultaneously |0⟩ and |1⟩ —
until the moment of observation.
|1⟩
Wave function collapsed — state determined
Move to observe — stillness preserves superposition
x-qubit.com