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Using Gate-Based Quantum Computers – Qubits and Quantum Circuits
In the previous chapter, we learned how to find the minimum of an energy function using a quantum annealer. This is a single-purpose solver, where any problem that can be converted into a QUBO can be solved on a D-Wave quantum annealer or other QUBO solvers. In this chapter, we will move to a more general class of quantum computers that are intended to solve any kind of mathematical problem. It would be accurate to say that a classical computer that allows any kind of calculation through a basic set of logical gates is a universal computer. Similarly, a quantum computer that allows the use of a set of logical gates that, in combination, can be used to solve any kind of mathematical ...
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