qubit
noun [ C ] computing specialized uk/ˈkjuː.bɪt/ us/ˈkjuː.bɪt/
量子比特
a unit of information used in quantum computing (= computing that does certain types of complicated calculations much faster than traditional computing) that can be either 0 or 1 or a combination of these values
A qubit is a "quantum digit" and is the quantum computing equivalent of a bit. 量子比特是一个“量子数位”，是量子计算中类似于经典计算中的比特的概念。
Each qubit is based on some property of a fundamental particle, such as the spin of an atom's nucleus.
- More examples
- A pair of qubits could be in four different states at once.
- Some physicists believe fully quantum computers will never be able to tame enough qubits to be useful.
- Though a qubit may, for a while, be in a state of superposition between 0 and 1, it must eventually choose between the two.