[CTuP7B] Novel Quantum Systems

[CTuP7B-03] Femtosecond Laser Direct Writing of Path Encoded Two-qubit and Multiqubit Photonic Quantum Gate Chips

*Meng Li¹, Chu Li¹, Yang Chen², Lan-Tian Feng², Xi-Feng Ren², Qihuang Gong^1,3,4,5, Yan Li^1,3,4,5 (1. State Key Lab. for Artificial Microstructure and Mesoscopic Phys., School of Phys., Peking Univ., Beijing (China), 2. CAS Key Lab. of Quantum Info., Univ.of Sci. and Tech. of China, Hefei (China), 3. Frontiers Sci. Center for Nano-Optoelectronics, Peking Univ., Beijing (China), 4. Collaborative Innovation Center of Extreme Optics, Shanxi Univ., Taiyuan, Shanxi (China), 5. Peking Univ. Yangtze Delta Inst. of Optoelectronics, Nantong (China))

[Presentation Style] Online

We demonstrate the first realization of path encoded two-qubit photonic quantum gate chip for generating Bell states, three-qubit Toffoli gate and four-qubit Controlled-Controlled-Controlled NOT gate via combining logic gates together by femtosecond laser direct writing.