Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Multi-channel Precision Voltage Source for Experiments on Quantum Dots

Version 1 : Received: 20 July 2021 / Approved: 20 July 2021 / Online: 20 July 2021 (15:29:52 CEST)
Version 2 : Received: 6 August 2021 / Approved: 9 August 2021 / Online: 9 August 2021 (18:17:09 CEST)

How to cite: Tang, Y.; Liu, K. Multi-channel Precision Voltage Source for Experiments on Quantum Dots. Preprints 2021, 2021070458 (doi: 10.20944/preprints202107.0458.v1). Tang, Y.; Liu, K. Multi-channel Precision Voltage Source for Experiments on Quantum Dots. Preprints 2021, 2021070458 (doi: 10.20944/preprints202107.0458.v1).

Abstract

To realize precise control of single quantum dots (Qdots) device, the high-performance bias source play the key role. In this paper, the 16-channel high precision voltage bias source prototype for Qdots device with 18-bit resolution was designed. The prototype was made and its performance was tested. The short time fluctuations can reach 50μV. The up-step and the down-step response time can achieve less than 3μs. The stability, linearity and setting time of the bias source exhibits good performance. What's more, the voltage bias source can be controlled by local and online. The results show that it is one effective and feasible topology for the high precision voltage bias source in Qdots device application.

Keywords

quantum dots; bias source; Multi-channel, high precision

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