Geometrically manipulating photonic Schrödinger cat states and realizing cavity phase

Y. Xu,1 W. Cai,1 Y. Ma,1 X. Mu,1 W. Dai,1 W. Wang,1 L. Hu,1 X. Li,1 J. Han,1 H. Wang,1 Y. P. Song,1 Zhen-Biao Yang,2, ∗ Shi-Biao Zheng,2, † and L. Sun1, ‡ 1Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China 2Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350116, China