Title :
Controlled-rotation quantum logic gate in a single self-assembled quantum dot
Author :
Boyle, Stephen J. ; Ramsay, Andrew J. ; Fox, A. Mark ; Skolnick, Maurice S. ; Liu, Hiu Yun ; Hopkinson, Mark
Author_Institution :
Dept. of Phys. & Astron., Univ. of Sheffield, Sheffield
Abstract :
We demonstrate conditional exciton-biexciton Rabi rotations in a single self-assembled InGaAs quantum dot using picosecond optical excitation and photocurrent readout, thereby implementing a two-qubit controlled-rotation (C-rot) quantum logic gate.
Keywords :
III-V semiconductors; gallium arsenide; high-speed optical techniques; indium compounds; logic gates; optical logic; quantum computing; self-assembly; semiconductor quantum dots; InGaAs; InGaAs quantum dot; controlled-rotation logic gate; exciton-biexciton Rabi rotations; photocurrent readout; picosecond optical excitation; quantum logic gate; self-assembled quantum dot; two-qubit logic gate; Excitons; Logic gates; Optical control; Photoconductivity; Polarization; Pulse measurements; Quantum computing; Quantum dots; Quantum entanglement; Stationary state; (270.5585) Quantum information and processing; (320.7130) Ultrafast processes in condensed matter, including semiconductors;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
