Review

Quantum Spintronics: Engineering and Manipulating Atom-Like Spins in Semiconductors

Science  08 Mar 2013:
Vol. 339, Issue 6124, pp. 1174-1179
DOI: 10.1126/science.1231364

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Abstract

The past decade has seen remarkable progress in isolating and controlling quantum coherence using charges and spins in semiconductors. Quantum control has been established at room temperature, and electron spin coherence times now exceed several seconds, a nine–order-of-magnitude increase in coherence compared with the first semiconductor qubits. These coherence times rival those traditionally found only in atomic systems, ushering in a new era of ultracoherent spintronics. We review recent advances in quantum measurements, coherent control, and the generation of entangled states and describe some of the challenges that remain for processing quantum information with spins in semiconductors.

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