Researchers from MIPT and the Kotelnikov Institute of Radio Engineering and Electronics have proposed a new architecture for a superconducting quantum simulator. The design utilizes polarization transmons, which are artificial atoms composed of four superconducting islands linked by Josephson junctions.
The simulator is designed to study topological and many-body quantum phenomena. The team arranged the polarization transmons in a zigzag chain, where interactions between elements vary based on their orientation. The model accounts for long-range interactions that link two polarization subspaces.
The scientists verified the architecture through three-dimensional electromagnetic modeling in a linear regime, replacing Josephson junctions with linear inductances. The results showed a strong correlation between the numerical simulations and the theoretical model of the zigzag chain.
This research was supported by the Russian Science Foundation grant number 25-22-00280. The findings were published in the journal Advanced Quantum Technologies.
