Quantum coherence refers to the situation where subatomic particles, such as electrons, are perfectly aligned and synchronized in their behavior. It means that they can act as a single entity and behave in a coordinated manner. This coherence allows particles to have special quantum properties, like superposition and entanglement, which are fundamental to quantum mechanics. In simpler words, it is when tiny particles work together seamlessly, creating unique quantum effects that have important implications in fields like computing and cryptography.
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