Laser-controlled local magnetic field with semiconductor quantum rings

Article

关键词: PERSISTENT CURRENTS;    ELECTRON;    COMPUTATION;    EXCITATION;    STATES;   

DOI  :  10.1103/PhysRevB.72.245331

来源: SCIE

【 摘 要 】

We analyze theoretically the dynamics of N electrons localized in a narrow 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. The current generation in quantum rings with finite width is also studied.

【 授权许可】

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