"Alex works with things you can't see at temperatures that don't exist"
- Anne Day (Alex's better half)
The Rimberg Group performs electrical transport
measurements to study the properties of nanostructures including quantum dots and tunnel junctions using radio-frequency single
electron transistors as a probe. We have two goals: first to understand the fundamental physics of such small structures; and
second to use them to produce devices with novel transport properties and potential applications. We use electron beam
lithography to fabricate our devices, and then use custom electronics and specialized low-noise and microwave measurement
techniques to make our precision measurements. We are particularly interested in the dynamics of individual electrons, and in
real-time observation of quantum phenomena.
Right: A radio-frequency single-electron transistor (RF-SET) coupled to a quantum dot
in a GaAs heterostructure. The RF-SET can be used to monitor the motion of
individual electrons on and of the dot in a time as short as one microsecond.
The Rimberg Group performs electrical transport
measurements to study the properties of nanostructures including quantum dots and tunnel junctions using radio-frequency single
electron transistors as a probe. We have two goals: first to understand the fundamental physics of such small structures; and
second to use them to produce devices with novel transport properties and potential applications. We use electron beam
lithography to fabricate our devices, and then use custom electronics and specialized low-noise and microwave measurement
techniques to make our precision measurements. We are particularly interested in the dynamics of individual electrons, and in
real-time observation of quantum phenomena.
