QUBIT

Qubit

In quantum computing, a qubit  or quantum bit is a unit of quantum information—the quantum analogue of the classical bit.  A qubit is a two-state quantum-mechanical system, such as the polarization of a single photon: here the two states are vertical polarization and horizontal polarization.  In a classical system, a bit would have to be in one state or the other, but quantum mechanics allows the qubit to be in a superposition of both states at the same time, a property which is fundamental to quantum computing.

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qubit

Noun

  1. A quantum bit; the unit of quantum information; a bit in a quantum computer capable of being in a state of superposition.


The above text is a snippet from Wiktionary: qubit
and as such is available under the Creative Commons Attribution/Share-Alike License.

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