To address the question about the term that refers to the strong information correlation between qubits, let’s analyze each option:

Solution By Steps

Step 1: Define Coherence

Coherence in quantum mechanics refers to the phase relationship between different states of a quantum system, not specifically to the correlation between qubits.

Step 2: Define Quantum Annealing

Quantum annealing is a metaheuristic for finding the global minimum of a given function, often used in optimization problems. It does not directly refer to the correlation between qubits.

Step 3: Define Entanglement

Entanglement is a quantum mechanical phenomenon where two or more particles become linked and the state of one particle cannot be described independently of the state of the others, even when the particles are separated by a large distance. This directly relates to the strong information correlation between qubits.

Step 4: Define Linear Combination

A linear combination in quantum mechanics refers to a superposition of states, where a state is described as a combination of other states. This concept does not specifically refer to the correlation between qubits.

Final Answer

The term that refers to the strong information correlation between qubits is entanglement.