Liu, Y., Zhang, J., Guo, Z., Huang, P., Huang, W., Liang, Y., Qiu, J., Sun, X., Wang, Z., Xie, C., Yang, X., Zhang, J., Zhang, L., Chu, J., Guo, W., Jiang, J., Linpeng, X., Liu, S., Niu, J., Zhou, Y., Zhong, Y., Ren, W., Tao, Z., Yu, D. (2025). Synthetic π-flux system in 2D superconducting qubit array with tunable coupling. Applied Physics Letters. https://doi.org/10.1063/5.0268772