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Calcimator

Probability Amplitude Calculator

Calculate quantum probability amplitudes, Born rule probabilities, phase angles, and normalization.

Inputs

Results

Probability |α|²

1

Magnitude |α|

1

Phase Angle

53.13°

Normalized Re0.6
Normalized Im0.8
Inner Product ⟨α|α⟩1
How to Use This Calculator
  1. Enter the Real Part (Re) and Imaginary Part (Im) of the quantum probability amplitude α.
  2. The Probability |α|² is the Born rule result — the actual measurable probability of finding the system in this state.
  3. Magnitude |α| must be ≤ 1 for a normalized amplitude; if it exceeds 1, renormalize the state vector first.
  4. Phase Angle (°) represents the relative phase, which matters for quantum interference but not for individual measurements.
  5. Use Normalized Re and Im outputs when you need the unit-normalized components for superposition calculations.
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Formula

P = |α|² = Re² + Im²

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