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{{Short description|Types of quantum information}}
{{Use American English|date=January 2019}}
In [[quantum computing]], a ''[[qubit]]'' is a unit of information analogous to a [[bit]] (binary digit) in [[classical computing]], but it is affected by [[quantum mechanical properties]] such as [[superposition (quantum mechanics)|superposition]] and [[quantum entanglement|entanglement]] which allow qubits to be in some ways more powerful than classical bits for some [[task (computing)|task]]s. Qubits are used in [[quantum circuit]]s and [[quantum algorithm]]s composed of [[quantum logic gates]] to solve [[computational problem]]s, where they are used for [[input/output]] and intermediate computations.
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