Which term refers to the strong information correlation between quits?

[quantumadmin]

The term that refers to the strong information correlation between qubits is "quantum entanglement." Quantum entanglement is a fundamental phenomenon in quantum mechanics where two or more qubits become linked in such a way that the state of one qubit is dependent on the state of another, regardless of the distance between them.

In an entangled state, measuring the state of one qubit instantly provides information about the state of the other qubits, even if they are separated by large distances. This phenomenon is often described using the famous phrase "spooky action at a distance," as coined by Albert Einstein, Boris Podolsky, and Nathan Rosen in their 1935 paper discussing the paradoxes of quantum mechanics.

Entanglement is a key resource in quantum computing and quantum communication, as it enables qubits to exhibit properties and behaviors that are not possible in classical systems. It forms the basis for various quantum algorithms and protocols, and it plays a critical role in the potential speedup of certain computations and in ensuring the security of quantum cryptographic systems.