Title :
Spin state readout by quantum jump technique: for the purpose of quantum computing
Author :
Pazy, Ehoud ; Calarco, Tommaso ; Zoller, P.
Author_Institution :
Dept. of Phys., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
fDate :
3/1/2004 12:00:00 AM
Abstract :
Utilizing the Pauli-blocking mechanism we show that shining circular polarized light on a singly-charged quantum dot induces spin dependent fluorescence. Employing the quantum-jump technique we demonstrate that this resonance luminescence, due to a spin dependent optical excitation, serves as an excellent readout mechanism for measuring the spin state of a single electron confined to a quantum dot.
Keywords :
excitons; fluorescence; semiconductor quantum dots; electron state; luminescence; optical excitation; pauli blocking mechanism; quantum computing; quantum jump; shining circular polarized light; singly charged quantum dot; spin dependent fluorescence; spin state readout; Atom optics; Charge measurement; Current measurement; Electron optics; Fluorescence; Optical pulses; Optical scattering; Pulse measurements; Quantum computing; Quantum dots;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2003.820516
