منابع مشابه
Edge-decomposition of topological indices
The topological indices, defined as the sum of contributions of all pairs of vertices (among which are the Wiener, Harary, hyper–Wiener indices, degree distance, and many others), are expressed in terms of contributions of edges and pairs of edges.
متن کاملImaging topological edge states in silicon photonics
Topological features—global properties not discernible locally—emerge in systems ranging from liquid crystals to magnets to fractional quantum Hall systems. A deeper understanding of the role of topology in physics has led to a new class of matter—topologically ordered systems. The best known examples are quantum Hall effects, where insensitivity to local properties manifests itself as conducta...
متن کاملedge-decomposition of topological indices
the topological indices, defined as the sum of contributions of all pairs of vertices (among which are the wiener, harary, hyper–wiener indices, degree distance, and many others), are expressed in terms of contributions of edges and pairs of edges.
متن کاملDirect imaging of topological edge states in cold-atom systems.
Detecting topological order in cold-atom experiments is an ongoing challenge, the resolution of which offers novel perspectives on topological matter. In material systems, unambiguous signatures of topological order exist for topological insulators and quantum Hall devices. In quantum Hall systems, the quantized conductivity and the associated robust propagating edge modes--guaranteed by the ex...
متن کاملConnectivity of edge and surface states in topological insulators
Yongjin Jiang,1,2 Feng Lu,1 Feng Zhai,1 Tony Low,3 and Jiangping Hu2 1Center for Statistical and Theoretical Condensed Matter Physics, and Department of Physics, Zhejiang Normal University, Jinhua 321004, People’s Republic of China 2Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA 3IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, USA (Received 6 Se...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2016
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.93.195166