Quantum Multiplexer

分裂闸极电晶体是在22年前发明的，自那以后在低维结构中电子输运的基础物理研究中被广泛使用。这种晶体管至多只有几个用于很小的电路中。我们设计了一种在同一芯片上制作1000多个分离栅器件的方法，以及偏置每个栅的方法，同时只需要40个触点就可以读出整个阵列的传输特性。这一进展将大大加快物理研究和新器件概念的探索，充分考虑到从门到门的内在波动的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.