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qubit |
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qubit (QUantum BIT) A data bit in quantum computing. Such an entity can hold more than two values. See quantum computing.qubit [′kyü·bit] (computer science) In quantum computation, a superposition of the ground state and the excited state of an elementary two-level quantum system (such as a two-level atom or a nuclear spin), corresponding to a classical bit that is either 0 (corresponding to the ground state) or 1 (corresponding to the excited state). Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | But it can also keep qubits from reaching their destination intact. Unlike data stored in a computer or typically sent through conventional fiber optic cables, however, qubits are extremely fragile. Just as bits are used as the fundamental building blocks of computers, qubits could one day be used as building blocks of a quantum computer, a device that exploits the laws of quantum mechanics to perform certain computations faster than can be done with classical bits alone. |
Qubits |
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