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Berry Curvature and Bulk-Boundary Correspondence from Transport Measurement for Photonic Chern Bands.
Chen, Chao; Liu, Run-Ze; Wu, Jizhou; Su, Zu-En; Ding, Xing; Qin, Jian; Wang, Lin; Zhang, Wei-Wei; He, Yu; Wang, Xi-Lin; Lu, Chao-Yang; Li, Li; Sanders, Barry C; Liu, Xiong-Jun; Pan, Jian-Wei.
Affiliation
  • Chen C; Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Liu RZ; CAS Centre for Excellence and Synergetic Innovation Centre in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Wu J; National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China.
  • Su ZE; Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Ding X; CAS Centre for Excellence and Synergetic Innovation Centre in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Qin J; Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China.
  • Wang L; The Physics Department and the Solid State Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
  • Zhang WW; Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • He Y; CAS Centre for Excellence and Synergetic Innovation Centre in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Wang XL; Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Lu CY; CAS Centre for Excellence and Synergetic Innovation Centre in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Li L; Department of Physics, University of Konstanz, D-78457 Konstanz, Germany.
  • Sanders BC; School of Computer Science, Northwestern Polytechnical University, Xi'an 710129, China.
  • Liu XJ; Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
  • Pan JW; National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China.
Phys Rev Lett ; 131(13): 133601, 2023 Sep 29.
Article in En | MEDLINE | ID: mdl-37831993
ABSTRACT
Berry curvature is a fundamental element to characterize topological quantum physics, while a full measurement of Berry curvature in momentum space was not reported for topological states. Here we achieve two-dimensional Berry curvature reconstruction in a photonic quantum anomalous Hall system via Hall transport measurement of a momentum-resolved wave packet. Integrating measured Berry curvature over the two-dimensional Brillouin zone, we obtain Chern numbers corresponding to -1 and 0. Further, we identify bulk-boundary correspondence by measuring topology-linked chiral edge states at the boundary. The full topological characterization of photonic Chern bands from Berry curvature, Chern number, and edge transport measurements enables our photonic system to serve as a versatile platform for further in-depth study of novel topological physics.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2023 Document type: Article Affiliation country:
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Add to My VHL
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2023 Document type: Article Affiliation country: