Synthetic π-flux system in 2D superconducting qubit array with tunable coupling
Abstract
Flat-band systems provide an ideal platform for exploring exotic quantum phenomena, where the strongly suppressed kinetic energy in these flat energy bands suggests the potential for exotic phases driven by geometric structure, disorder, and interactions. While intriguing phenomena and physical mechanisms have been unveiled in theoretical models, synthesizing such systems within scalable quantum platforms remains challenging. Here, we present the experimental realization of a π-flux rhombic system using a two-dimensional superconducting qubit array with tunable coupling. We experimentally observe characteristic dynamics, e.g., π-flux driven destructive interference, and demonstrate the protocol for eigenstate preparation in this rhombic array with coupler-assisted flux. Our results provide future possibilities for exploring the interplay of geometry, interactions, and quantum information encoding in such degenerate systems.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (24)
Yiting Liu
Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, SAR 999077, P. R. China
Jiawei Zhang
Zechen Guo
Peisheng Huang
International Quantum Academy 2 , Shenzhen, Guangdong,
Wenhui Huang
Yongqi Liang
Jiawei Qiu
Xuandong Sun
Zilin Wang
Changrong Xie
Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology 1 , Shenzhen, Guangdong,
Xiaohan Yang
Jiajian Zhang
Libo Zhang
Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
Ji Chu
Weijie Guo
Department of Molecular Biosciences
Ji Jiang
Xiayu Linpeng
Song Liu
Jingjing Niu
Yuxuan Zhou
Youpeng Zhong
Wenhui Ren
Ziyu Tao
Dapeng Yu