Information scrambling and entanglement in quantum approximate optimization algorithm circuits Chen Qian, Wei-Feng Zhuang, Rui-Cheng Guo, Meng-Jun Hu and Dong E. Liu Eur. Phys. J. Plus, 139 1 (2024) 14 Published online: 03 January 2024 DOI: 10.1140/epjp/s13360-023-04801-9