Bloch Sphere
Rx, Ry, and Rz apply the rotation angle set in the panel below.
State
0.0°
|ψ⟩
|ψ⟩ = 1.0000|0⟩ + 0.0000|1⟩
0.0°
Gate
90.0°
Alpha1.0000 + 0.0000i
Beta0.0000 + 0.0000i
Theta0.0°
Phi0.0°
P(0)1.0000
P(1)0.0000
Theta 0.00 radians, phi 0.00 radians, probability zero 1.000, probability one 0.000.
Learning mode
Mission briefingBeginner / 6 min
Navigate one qubit
A qubit is a pointer on a sphere: its direction controls the chance of measuring 0 or 1.
Try a |+> state, rotate around Z, and watch probabilities stay fixed while phase changes.
Definitions on demand
Theta
The polar angle controlling movement between the |0> and |1> measurement poles.
Phi
The azimuthal phase angle around the equator; it can change while Z-basis probabilities stay fixed.
Gate
A reversible transformation represented here as a rotation of the qubit state.
Target |1> angular error3.142 rad