# Nonlocal Transport in the Quantum Spin Hall State

It has been reported that nonlocal Transport in the can be realized in topological insulator. Why non-local transport through edge channels has the potential application for low-power information processing?

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I think the most knowledgeable person on this matter on stackexchange is Prof. Liang Fu. He's the best person to ask! I think the reason you can have low-power applications is that these edge channels have a conductance of $2e^2/h$ despite varying levels of disorder. In other words, these channels are robust to disorder. –  NanoPhys Oct 22 '12 at 16:41