Si Chen, Li-Chao Peng, Y-P Guo, X-M Gu, X Ding, R-Z Liu, J-Y Zhao, X You, J Qin, Y-F Wang, Yu-Ming He, Jelmer J Renema, Yong-Heng Huo, Hui Wang, Chao-Yang Lu, Jian-Wei Pan
In the quest to build general-purpose photonic quantum computers, fusion-based quantum computation has risen to prominence as a promising strategy. This model allows a ballistic construction of large cluster states which are universal for quantum computation, in a scalable and loss-tolerant way without feed forward, by fusing many small n-photon entangled resource states. However, a key obstacle to this architecture lies in efficiently generating the required essential resource states on photonic chips. One such critical seed state that has not yet been achieved is the heralded three-photon Greenberger-Horne-Zeilinger (3-GHZ) state...
March 29, 2024: Physical Review Letters