Bloch sphere pure state The
uses two angles to represent the single-qubit pure state, omitting the global phase.
symbols, variables and units
θ∈[0,π], φ∈[0,2π): rad; amplitude is dimensionless.
applicable conditions and boundaries
is used only for single-bit pure states; mixed states are represented by density matrices within the sphere.
formula source code
The following is a copyable LaTeX expression.
|\psi\rangle=\cos\frac\theta2|0\rangle+e^{i\phi}\sin\frac\theta2|1\rangleReference and Extended Learning
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Bloch spherequbit