A group of Russian scientists demonstrated an effective solution to a physical problem using a quantum simulator.
Scientists have tested whether it can be usedRussian quantum simulator, built on the basis of five superconducting qubits in order to solve the problem of the growth of the volume of computations, as the number of interacting objects increases.
It turned out that such a simple quantumthe system is enough to calculate the interactions of light particles in two hours. The experiment showed exactly how superconducting simulators can help solve problems in materials science and study phases of matter that are not found in nature (for example, superfluids).
In the presented system, the work of qubits can beset up in such a way that they will mimic the behavior of photons or other bosons according to the Bose-Hubbard model. In fact, by simple observation (direct spectroscopy), it is possible to determine and calculate the behavior of a large number of particles in a relatively short time.
Early quantum simulators because of theirimperfections are often faced with the problem of mismatching the simulation object. In this context, skeptics said that these machines are only simulating themselves. We did not try to make the system work against its nature, but found a physical problem - the calculation of the behavior of photons in the Bose-Hubbard model, making the most of its internal capabilities.
Gleb Fedorov, MIPT graduate student
This result, obtained by only fivetransmon qubits, shows that the development of systems with a large number of qubits will allow observing the behavior of models, the complexity of the calculation of which lies far beyond the limits of most supercomputers.
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