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Spin Qubits Silicon Quantum Computing

Experimental realization of a quantum spin pump.

PubMed

Authors: Watson SK, Potok RM, Marcus CM, Umansky V

Year

2003

Paper ID

12974

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

Citations

284

Abstract

We demonstrate the operation of a quantum spin pump based on cyclic radio-frequency excitation of a GaAs quantum dot, including the ability to pump pure spin without pumping charge. The device takes advantage of bidirectional mesoscopic fluctuations of pumped current, made spin dependent by the application of an in-plane Zeeman field. Spin currents are measured by placing the pump in a focusing geometry with a spin-selective collector.

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We demonstrate the operation of a quantum spin pump based on cyclic radio-frequency excitation of a GaAs quantum dot, including the ability to pump pure spin without pumping...

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.91.258301 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/14754164/

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External citation index: OpenAlex citation signal • updated 2026-07-02 01:58:39

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