Qubit
Introduction to quantum computing
Article REF: H3600 V1
Qubit
Introduction to quantum computing

Author : Frédéric LEMOINE

Publication date: April 10, 2025 | Lire en français

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2. Qubit

2.1 Definition

In conventional computing, the basic unit is the bit, which is either 0 or 1.

In quantum computing, there are two basic quantum states |0> (pronounced ket 0) and |1> (ket 1).

These two states can be written as two vectors:

|0>=(
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