| Abstrakt: | Quantum computers of today's world face problems such as errors, noise, and decoherence. Currently, quantum algorithms themselves cannot reliably solve any tasks. For this reason, there has been introduced a hybrid quantum algorithm called variational quantum eigensolver (VQE) that attempts to mitigate these problems by delegating part of the work to classical computers. In this case, it is important to ensure efficient collaboration between classical and quantum computers. Hence, in our work, we tested optimization algorithms and various configurations of a quantum computer to achieve the best possible results. We considered ideal quantum computers, and the problem on which we conducted all our experiments was finding the ground state of a hydrogen molecule.
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