Measuring Topological Invariants in Photonic Systems

作者:Hafezi Mohammad*
来源:Physical Review Letters, 2014, 112(21): 210405.
DOI:10.1103/PhysRevLett.112.210405

摘要

Motivated by the recent theoretical and experimental progress in implementing topological orders with photons, we analyze photonic systems with different topologies and present a scheme to probe their topological features. Specifically, we propose a scheme to modify the boundary phases to manipulate edge state dynamics. Such a scheme allows one to measure the winding number of the edge states. Furthermore, we discuss the effect of loss and disorder on the validity of our approach.

  • 出版日期2014-5-29