cond-mat.quant-gas quant-ph
Observation of Higgs and Goldstone modes in U(1) symmetry-broken Rydberg atomic systems
Bang Liu Li-Hua Zhang Ya-Jun Wang Jun Zhang Qi-Feng Wang Yu Ma Tian-Yu Han Zheng-Yuan Zhang Shi-Yao Shao Qing Li Han-Chao Chen Jia-Dou Nan Dong-Yang Zhu Yi-Ming Yin Bao-Sen Shi Dong-Sheng Ding