Quantum Multiplexer

分栅晶体管是22年前发明的，从那时起，它就被广泛应用于研究低维结构中电子传递的基本物理。在非常小的电路中最多使用了几个这样的晶体管。我们设计了一种在同一芯片上制造超过1000个分闸器件的方法，以及对每个门进行偏置的方法，同时只需要40个触点就可以读出整个阵列的传输特性。这一进展将极大地加速物理研究和新器件概念的探索，充分考虑到作为门到门固有波动函数的结果的统计分析。

The split gate transistor was invented 22 years ago and has ben in wide-spread use ever since in the investigations of the fundamental physics of electron transport in low-dimensional structures. At most a few such transistors have ben used in very small circuits. We have devised a way of making over 1000 split gate devices on the same chip and the way to bias each gate, while needing only 40 contacts to read out the transport properties of the entire array. This advance will greatly accelerate both the physics investigations and the exploration of new device concepts, taking fully into account a statistical analysis of the results as a function of the intrinsic fluctuations from gate-to-gate.