Researchers demonstrate the creation of an eight-photon Schrödinger-cat state with genuine multipartite entanglement by developing noise-reduction multiphoton interferometer and post-selection detection. The ability to control eight individual photons will enable new multiphoton entanglement experiments in previously inaccessible parameter regimes.
- Xing-Can Yao
- Tian-Xiong Wang
- Jian-Wei Pan