Optically Controlled Quantum Dot Spins for Scaleable Quantum Computing

摘要

This program conducted experimental research aimed at developing an optically driven quantum dot quantum computer. The work was done in collaboration with D. Gammon at the Naval Research Laboratory and L. J. Sham at UCSD. D. Gammon had responsibility for growing & characterizing the material, L. J. Sham is responsible for theoretical support & concept development. The group at Michigan along with this QuaCGR student are responsible for experimental demonstration of key experimental demonstrations for quantum computing. The original parent program that was funded during the start of this QuaCGR program was aimed at studies of the exciton Bloch vector qubit in neutral quantum dots. The parent program funded during the last part of the QuaCGR grant was aimed at studies of the optical manipulation of the electron spin qubit in charged quantum dots. Work done on this QuaCGR then includes research on both of these approaches. During much of this QuaCGR program, the student focused on demonstrating quantum state tomography. This was most easily approached using neutral quantum dots. The annual reports document the details of this work. In this Final Report, we present the final results of this work, which are now in press in the Physical Review letters.