quantum entanglement means: measuring one qubit instantly determines the other's state

Quantum entanglement instantly links particles' states

Quantum entanglement is a phenomenon where particles become interconnected, such that the state of one particle instantly influences the state of another, regardless of distance.

Example

If two entangled particles have opposite spins, measuring the spin of one instantly reveals the spin of the other.

Remember this

Understanding entanglement is crucial for advancing quantum computing and communication technologies.

Text adapted from Wikipedia, licensed under CC BY-SA 4.0.

Related concepts

Quantum superposition

A qubit exists in superposition of |0⟩ and |1⟩

Quantum key distribution

Can secret messages be intercepted without anyone noticing?

Quantum logic gate

Hadamard gate puts a qubit into equal superposition of |0⟩ and |1⟩

Quantum computing

Quantum computers can solve certain problems exponentially faster than classical computers

Shor's algorithm

Shor's algorithm factors integers in polynomial time on a quantum computer

Entanglement swapping

Entanglement swapping transfers entanglement between particles

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