qubit

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Related to Quibit: qubit, 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).

qubit

(QUantum BIT) A unit of data in a quantum computer. The "bit" in qubit is somewhat misleading. Unlike a bit (binary digit) in a digital computer, which can hold a 0 or 1, a qubit can represent both a 0 and 1 at the same time or multiple states in between. In addition, the qubit is not a storage cell but typically an electron or photon, and the electron's charge or the photon's polarization determines the 0 or 1. See quantum computing.
References in periodicals archive ?
They begin with background material on linear algebra and skill-building, with chapters on the basics of vectors and matrices, the framework of quantum mechanics, quibits and quantum key distribution, quantum gates and quantum circuits and their relation to quantum computing, simple quantum algorithms, quantum integral transforms, Grover's search algorithm, Shor's factorization algorithm, de-coherence, and quantum error correcting codes.
1 (spoken by the narrator: quid faciamus homines miserrimi et novi labyrintho inclusi, quibits lavari iam coeperat votum esse), with the discussion in Laird 1999, 107.