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. 2022 Oct 8;24(10):1428. doi: 10.3390/e24101428
Algorithm 2 VQA algorithm.
  • Input: 

    An optimization problem.

  • Output: 

    Parameters in the parameterized quantum circuit.

  •  1:

    Construct the objective function.

  •  2:

    Construct the parameterized quantum circuit.

  •  3:

    Prepare the quantum state and measure the expectation value.

  •  4:

    Use a classical optimizer to determine new parameters.

  •  5:

    Iterate the procedure in step 3 and 4 until the convergence of the value.

  •  6:

    return the final parameters.