Practical Quantum Computing for Developers by Vladimir Silva

Author:Vladimir Silva
Language: eng
Format: epub
ISBN: 9781484242186
Publisher: Apress

Tip

Superposition is simply the linear combination of the |0> and |1> states. That is, α| 0⟩+β ∣ 1⟩ where the length of the state vector is 1 as shown in Figure 4-3.

Ket Notation Too Weird? Use Vectors Instead

If you like algebra and find the ket notation confusing, just use the familiar vector representation instead. Thus the superposition from the previous section can be written as

Note that, because kets are vectors, they obey the same rules as vectors do, for example, multiplication by a scalar:

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