16 citations · 23 across the 5 of their papers we have counts for
5 papers
Sensing Few Electrons Floating on Helium with High-Electron-Mobility Transistors
Mayer M. Feldman, Gordian Fuchs, Tiffany Liu +4
We report on low-frequency measurements of few electrons floating on superfluid helium using a bespoke cryogenic cascode amplifier circuit built with off-the-shelf GaAs High-Electr…
Towards Utilizing Scanning Gate Microscopy as a High-Resolution Probe of Valley Splitting in Si/SiGe Heterostructures
Efe Cakar, H. Ekmel Ercan, Gordian Fuchs +4
A detailed understanding of the material properties that affect the splitting between the two low-lying valley states in Si/SiGe heterostructures will be increasingly important as…
Dispersive readout of a silicon quantum device using an atomic force microscope-based rf gate sensor
Artem O. Denisov, Gordian Fuchs, Seong W. Oh +1
We demonstrate dispersive charge sensing of Si/SiGe single and double quantum dots (DQD) by coupling sub-micron floating gates to a radio frequency reflectometry (rf-reflectometry)…
Second Quantization: Gating a Quantum Dot Through the Sequential Removal of Single Electrons from a Nanoscale Floating Gate
Artem O. Denisov, Gordian Fuchs, Seong W. Oh +1
We use the tip of an atomic force microscope (AFM) to charge floating metallic gates defined on the surface of a Si/SiGe heterostructure. The AFM tip serves as an ideal and movable…
Microwave-frequency scanning gate microscopy of a Si/SiGe double quantum dot
Artem O. Denisov, Seong W. Oh, Gordian Fuchs +6
Conventional quantum transport methods can provide quantitative information on spin, orbital, and valley states in quantum dots, but often lack spatial resolution. Scanning tunneli…