**Qubit**

Definition | : | Quantum bit |

Category | : | Academic & Science Units |

Country/Region | : | Worldwide |

Popularity | : |

# What does Qubit mean?

**Qu**antum **bit** (qubit) is the smallest unit of information in a quantum computer. Qubit can hold a value of 1 or 0 as well as both values at the same time, described as superposition and simply denoted as “0+1”. The sign of this superposition is important because both states 0 and 1 have a phase relationship to each other. This superposition property is what allows quantum computers to choose the correct solution amongst millions of possibilities in a time much faster than a conventional computer.