Laser-controlled local magnetic field with semiconductor quantum rings

Details Laser-controlled local magnetic field with semiconductor quantum rings Laser-controlled local magnetic field with semiconductor quantum rings

2005-01-31

arxiv.org/abs/cond-mat/0502001v1

Phys. Rev. B 72, 245331 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.72.245331

We analize theoretically the dynamics of N electrons localized in a semiconductor quantum ring under a train of phase-locked infrared laser pulses. The pulse sequence is designed to control the total angular momentum of the electrons. The quantum ring can be put in states characterized by strong currents. The local magnetic field created by these currents can be used for a selective quantum control of single spins in semiconductor systems.

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