Selective optical manipulation of the spin state of a single magnetic impurity in a semiconductor quantum dot

Details Selective optical manipulation of the spin state of a single magnetic impurity in a semiconductor quantum dot Selective optical manipulation of the spin state of a single magnetic impurity in a semiconductor quantum dot

2004-07-27

arxiv.org/abs/cond-mat/0407705v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.70.035321

We consider the optical properties of a single magnetic impurity in a self-assembled quantum dot. We show that using the resonant pumping one can address and manipulate selectively individual spin states of a magnetic impurity. The mechanisms of resonant optical polarization of a single impurity in a quantum dot involve anisotropic exchange interactions and are different to those in diluted semiconductors. A Mn impurity can act as qubit. The limiting factors for the qubit manipulation are the electron-hole exchange interaction and finite temperature.

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