July 2025
Beginner to intermediate
512 pages
11h 48m
English
Content preview from A Practical Guide to Quantum Computing
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Chapter 8 How to Work with Many Qubits
United we stand, divided we fall. — Aesop
In this chapter, we will study systems with many qubits. This will allow us to fully exploit the potential of superposition, entanglement, and interference in practical quantum algorithms.
In order to learn how to work with multi-qubit systems, we will introduce the mathematical tools needed to describe their states, transform them and measure them. This will all be analogous to what we already know about two-qubit systems, but we will now work in full generality.
Along the way, we will also learn about universal sets of gates, which will help us to implement big quantum circuits with smaller building blocks.
The topics covered in this chapter are the following: ...
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