4 Nonlocal games: Working with multiple qubits
This chapter covers
- Using nonlocal games to check that quantum mechanics is consistent with how the universe works
- Simulating state preparation, operations, and measurement results for multiple qubits
- Recognizing the characteristics of entangled states
In the last chapter, we used qubits to communicate with Eve securely, exploring how we can use quantum devices in cryptography. Working with one qubit at a time is fun, but working with more will be—well, more fun! In this chapter, we’ll learn how to model states of multiple qubits and what it means for them to be entangled. We will again be playing games with Eve, but this time we will need a referee!
4.1 Nonlocal games
At this point, we have ...
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