Optically Controlled Quantum Dots for Quantum Computing
Abstract
This program conducted experimental & theoretical research aimed at developing an optically driven quantum dot quantum computer. In addition to the 2 %Pl's, the work was done in collaboration with Dan Gammon at the Naval Research laboratory. D. Gammon had responsibility for growing & characterizing the material, U Sham is responsible for theoretical support & concept development & DG Steel is responsible for experimental demonstration of key experimental demonstrations for quantum computing. Key ideas have now been tested & verified on this system, including demonstration of a quantum controlled-NOT gate & a theoretical proposal to use pulse-shaping to reduce unintended dynamics leading to errors & to increase computation speed. For scalable quantum computation, the qubit for this system is the optically controlled electron spin vector. Initial experiments have now been completed demonstrating that we produce single charged quantum dots (Gammon at NRL), & that we can optically control & manipulate these states. A lower limit on the decoherence rate has also been determine.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 21, 2005
- Accession Number
- ADA435727
Entities
People
- Duncan G. Steel
- Lu. J. Sham
Organizations
- University of Michigan