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. 2023 Feb 18;13:2906. doi: 10.1038/s41598-023-29643-4

Figure 5.

Figure 5

Variational linear solver algorithm. As described in Fig. 1, the algorithm accepts as input an A and b specifying a LSP and minimizes a cost function to create a parameterized quantum circuit that solves the LSP. Specifically, the cost function optimization takes advantage of classical optimization techniques, while the cost function evaluation occurs via either quantum hardware or a classical simulator of such hardware.