Charge detection using a WSe$_2$ van der Waals heterostructure
Justin Boddison-Chouinard, Alex Bogan, Norman Fong, Pedro Barrios,, Jean Lapointe, Kenji Watanabe, Takashi Taniguchi, Adina Luican-Mayer, and, Louis Gaudreau
TL;DR
This paper demonstrates that WSe2-based van der Waals heterostructure devices with nano-constrictions can effectively detect single charges in quantum dots, advancing quantum circuit technology.
Contribution
It introduces a novel charge detection method using 2D material heterostructures with nano-constrictions for quantum devices.
Findings
Successful detection of single charging events in quantum dots
Use of monolayer WSe2 heterostructures for charge sensing
Potential for integration into complex quantum circuits
Abstract
Detecting single charging events in quantum devices is an important step towards realizing practical quantum circuits for quantum information processing. In this work, we demonstrate that van derWaals heterostructure devices with gated nano-constrictions in monolayer WSe2 can be used as charge detectors for nearby quantum dots. These results open the possibility of implementing charge detection schemes based on 2D materials in complex quantum circuits.
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Taxonomy
Topics2D Materials and Applications · Graphene research and applications · Boron and Carbon Nanomaterials Research