Superposition
Superposition is a core quantum mechanics principle where a quantum system (like an electron or qubit) exists in multiple states (e.g., 0 and 1, or different locations) simultaneously, described as a sum of possibilities, until measured, at which point it "collapses" into a single definite state.
Superposition is a core quantum mechanics principle where a quantum system (like an electron or qubit) exists in multiple states (e.g., 0 and 1, or different locations) simultaneously, described as a sum of possibilities, until measured, at which point it "collapses" into a single definite state.
In Quantum Mechanics (Quantum Superposition)
- What it is: A quantum particle isn't in one state but a combination (a "weighted blend") of all its possible states at once.
- Analogy: A flipped coin that's both heads and tails until it lands.
Key Feature: Measurement forces the system to "choose" one state, losing the superposition.
Why it matters: Powers quantum computing (qubits), quantum entanglement, and quantum interference.