### What is the smallest data unit in quantum computing?

- 1 Cubik
- 1 Cubit
- 1 Qubit
- 1 Quanbit

#### EXPLANATION

A qubit is a quantum bit , the counterpart in quantum computing to the binary digit orbit of classical computing. Just as a bit is the basic unit of information in a classical computer, a qubit is the basic unit of information in a quantum computerIn a quantum computer, a number of elemental particles such as electrons or photons can be used, with either their charge or polarization acting as a representation of 0 and 1. In a classical system, a bit would have to be in one state or the other. However, 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.

See wikipedia entry for more information:

https://en.wikipedia.org/wiki/Qubit

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