8.4 Summary

In this chapter we introduced the standard 2-qubit and 3-qubit gate operations to complement the classical forms from section 2.4CNOT gate allows us to entangle qubits. Entanglement, along with superposition and interference, is a key differentiator in quantum computing.

Now that we have a collection of gates, it’s time to put them into circuits and implement algorithms. We begin doing that in the next chapter.

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Saunders Mac Lane. Categories for the Working Mathematician. 2nd ed. Graduate...