Optical Read-Out and Initialization of an Electron Spin in a Single Quantum Dot

Details Optical Read-Out and Initialization of an Electron Spin in a Single Quantum Dot Optical Read-Out and Initialization of an Electron Spin in a Single Quantum Dot

2003-07-15

arxiv.org/abs/cond-mat/0307369v1

Phys. Rev. B v. 68, 201305(R) (2003).

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.68.201305

We describe theoretically the resonant optical excitation of a trion with circularly polarized light and discuss how this trion permits the read-out of a single electron spin through a recycling transition. Optical pumping through combination of circularly polarized optical $\pi$--pulses with permanent or $\pi$-- pulsed transverse magnetic fields suggests feasible protocols for spin initialization.

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