Rydberg Blockade in an Ultracold Strontium Gas Revealed by Two-Photon Excitation Dynamics

Chang Qiao, 2, ∗ Can-Zhu Tan, 2, ∗ Julia Siegl, 3 Fa-Chao Hu, 2 Zhi-Jing Niu, 2 Y.H. Jiang, 2, † Matthias Weidemüller, 2, 3, ‡ and Bing Zhu 2, § Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China (Dated: March 9, 2021)