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

fYear

2008

fDate

4-9 May 2008

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

iet

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

Type

conf

Filename

4572780