Experimental observation of dynamical bulk-surface correspondence in momentum space for topological phases

Wang, Ya1,2,3,4; Ji, Wentao1,2,3,4; Chai, Zihua1,2,3,4; Guo, Yuhang1,2,3,4; Wang, Mengqi1,2,3,4; Ye, Xiangyu1,2,3,4; Yu, Pei1,2,3,4; Zhang, Long5,6; Qin, Xi1,2,3,4; Wang, Pengfei1,2,3,4; Shi, Fazhan1,2,3,4; Rong, Xing1,2,3,4; Lu, Dawei7,8,9; Liu, Xiong-Jun5,6,7,8,10; Du, Jiangfeng1,2,3,4

2019-11-25

10.1103/PhysRevA.100.052328

PHYSICAL REVIEW A   影响因子和分区

2469-9926

2469-9934

Characterization of topological invariants in experiments is at the heart of understanding topological quantum phases. We experimentally demonstrate a dynamical classification approach for investigation of topological quantum phases using a solid-state spin system through nitrogen vacancy (NV) center in diamond Similar to the bulk-boundary correspondence in real space at equilibrium, we observe a dynamical bulk-surface correspondence in the momentum space from a dynamical quench process. An emergent dynamical topological invariant is precisely measured in experiment by imaging the dynamical spin textures on the recently defined band-inversion surfaces, with high topological numbers being implemented. Importantly, the dynamical classification approach is shown to be independent of quench ways and robust to the dephasing effects, offering a powerful strategy for dynamical topology characterization, especially for high-dimensional gapped topological phases.

SCI ; EI

英语

通讯

Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06D348]

Optics ; Physics

Optics ; Physics, Atomic, Molecular & Chemical

WOS:000498843300004

AMER PHYSICAL SOC

20194807758724

Momentum ; Quantum theory ; Textures ; Topology

Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4 ; Mechanics:931.1 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

Web of Science

1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
3.Univ Sci & Technol China, CAS Key Lab Microscale Magnet Resonance, Hefei 230026, Anhui, Peoples R China
4.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China
5.Peking Univ, Int Ctr Quantum Mat, Sch Phys, Beijing 100871, Peoples R China
6.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
7.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
8.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China
9.Shenzhen Key Lab Quantum Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
10.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China

Wang, Ya,Ji, Wentao,Chai, Zihua,et al. Experimental observation of dynamical bulk-surface correspondence in momentum space for topological phases[J]. PHYSICAL REVIEW A,2019,100(5).

Wang, Ya.,Ji, Wentao.,Chai, Zihua.,Guo, Yuhang.,Wang, Mengqi.,...&Du, Jiangfeng.(2019).Experimental observation of dynamical bulk-surface correspondence in momentum space for topological phases.PHYSICAL REVIEW A,100(5).

Wang, Ya,et al."Experimental observation of dynamical bulk-surface correspondence in momentum space for topological phases".PHYSICAL REVIEW A 100.5(2019).