The sensors rely on quantum tunnelling, in which electrons take journeys that would not be allowed by the laws of classical physics, as long as the distances involved are tiny. 這些傳感器根據量子隧道效應的原理工作,即只要間隔的距離非常微小,電子就能穿過(guò)經(jīng)典物理學(xué)認為不能通過(guò)的勢壘。