Floquet prethermal phase protected by U(1) symmetry on a superconducting quantum processor

Ying, Chong1,2,3; Guo, Qihao4,5,6,7; Li, Shaowei1,2,3; Gong, Ming1,2,3; Deng, Xiu-Hao4,7; Chen, Fusheng1,2,3; Zha, Chen1,2,3; Ye, Yangsen1,2,3; Wang, Can1,2,3; Zhu, Qingling1,2,3; Wang, Shiyu1,2,3; Zhao, Youwei1,2,3; Qian, Haoran1,2,3; Guo, Shaojun1,2,3; Wu, Yulin1,2,3; Rong, Hao1,2,3; Deng, Hui1,2,3; Liang, Futian1,2,3; Lin, Jin1,2,3; Xu, Yu1,2,3; Peng, Cheng-Zhi1,2,3; Lu, Chao-Yang1,2,3; Yin, Zhang-Qi5,6,8; Zhu, Xiaobo1,2,3; Pan, Jian-Wei1,2,3

2022-01-18

10.1103/PhysRevA.105.012418

PHYSICAL REVIEW A   影响因子和分区

2469-9926

2469-9934

Periodically driven systems, or Floquet systems, exhibit many novel dynamics and interesting out-of-equilibrium phases of matter. Those phases arising with the quantum systems' symmetries, such as global U(1) symmetry, can even show dynamical stability with symmetry protection. Here we experimentally demonstrate a U(1) symmetry-protected prethermal phase, via performing a digital-analog quantum simulation on a superconducting quantum processor. The dynamical stability of this phase is revealed by its robustness against external perturbations. We also find that the site-averaged square of the two-spin correlation function in this phase is stabilized by the interaction between the spins. Our work reveals a promising prospect in discovering emergent quantum dynamical phases with digital-analog quantum simulators.

SCI ; EI

英语

通讯

National Key R&D Program of China[2017YFA0304300] ; National Natural Science Foundation of China[11905217,61771278] ; Natural Science Foundation of Shanghai[19ZR1462700] ; Key-Area Research and Development Program of Guangdong Provice[2020B0303030001] ; Key Area Research and Development Program of Guang-Dong Province[2018B030326001] ; Guangdong Provincial Key Laboratory[2019B121203002] ; Shenzhen Science and Technology Program[KQTD20200820113010023]

Optics ; Physics

Optics ; Physics, Atomic, Molecular & Chemical

WOS:000747599700017

AMER PHYSICAL SOC

20220611607788

Quantum optics ; Stability

Light/Optics:741.1 ; Physical Chemistry:801.4 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

Web of Science

1.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, CAS Ctr Excellence Quantum Informat & Quantum Phy, Shanghai Branch, Shanghai 201315, Peoples R China
3.Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China
4.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
5.Beijing Inst Technol, Sch Phys, Ctr Quantum Technol Res, Beijing 100081, Peoples R China
6.Beijing Inst Technol, Sch Phys, Key Lab Adv Optoelect Quantum Architecture & Meas, Beijing 100081, Peoples R China
7.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
8.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China

Ying, Chong,Guo, Qihao,Li, Shaowei,et al. Floquet prethermal phase protected by U(1) symmetry on a superconducting quantum processor[J]. PHYSICAL REVIEW A,2022,105(1).

Ying, Chong.,Guo, Qihao.,Li, Shaowei.,Gong, Ming.,Deng, Xiu-Hao.,...&Pan, Jian-Wei.(2022).Floquet prethermal phase protected by U(1) symmetry on a superconducting quantum processor.PHYSICAL REVIEW A,105(1).

Ying, Chong,et al."Floquet prethermal phase protected by U(1) symmetry on a superconducting quantum processor".PHYSICAL REVIEW A 105.1(2022).