Tunable and direction-dependent group velocities in topologically protected edge states

Article

关键词: QUANTIZED HALL CONDUCTANCE;    REALIZATION;    INSULATOR;    INVARIANT;    MODEL;   

DOI  :  10.1103/PhysRevB.93.205438

来源: SCIE

【 摘 要 】

Topological effects continue to fascinate physicists since more than three decades. One of their main applications are high-precision measurements of the resistivity. We propose to make also use of the spatially separated edge states. It is possible to realize strongly direction-dependent group velocities. They can also be tuned over orders of magnitude so that robust and tunable delay lines and interference devices are within reach.

【 授权许可】

Free