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fundamentals
beginner

Superposition

Definition

A quantum state where a particle exists in multiple states simultaneously. For qubits, this means being in a combination of |0⟩ and |1⟩ at the same time, described as |ψ⟩ = α|0⟩ + β|1⟩ where α and β are complex amplitudes.

AI Explanation

Examples

  • • Schrödinger's cat is simultaneously alive and dead until observed.
  • • An electron in superposition spins both clockwise and counterclockwise simultaneously.

Visual

Wave interference pattern showing how quantum states combine like waves, with constructive and destructive interference.

Related Concepts

Qubit
Hadamard Gate
Measurement
Wave Function

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