Their application in the study of mesoscopic phenomena and in quantum information processing has cemented low-dimensional semiconductors at the forefront condensed matter and materials physics research. The semiconductor based implementation of a solid-state quantum information processing system, where typically the spin configuration of one or a few electrons constitutes a qubit, can be realized through the formation of an array of quantum dots using electrostatic gates over a quantum well created in a semiconductor heterostructure. Our group designs near surface quantum well systems, implements their growth by molecular beam epitaxy, and studies their electronic properties and the noise characteristics of quantum devices.
This work is funded by IARPA
Coupling a superconductor to a semiconductor results in a localized region where charge carriers feel the physics of both materials. A low dimensional semiconductor with large spin-orbit proximity coupled to an s-wave superconductor is predicted to result in a topological superconductor. This new class of material may lead to topological quantum computers. Our group designs superconductor-low dimensional semiconductor heterostructures, implements their growth by molecular beam epitaxy, and studies their electronic properties and transport in mesoscopic devices.
This work is funded by Microsoft Corporation