Coherent Single-Hole Spin in a Semiconductor

Semiconductors have uniquely attractive properties for electronics and photonics. However, it has been difficult to find a highly coherent quantum state in a semiconductor for applications in quantum sensing and quantum information processing. We report coherent population trapping, an optical quant...

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Published inScience (American Association for the Advancement of Science) Vol. 325; no. 5936; pp. 70 - 72
Main Authors Brunner, Daniel, Gerardot, Brian D, Dalgarno, Paul A, Wüst, Gunter, Karrai, Khaled, Stoltz, Nick G, Petroff, Pierre M, Warburton, Richard J
Format Journal Article
LanguageEnglish
Published United States American Association for the Advancement of Science 03.07.2009
The American Association for the Advancement of Science
Subjects
Electrons
Excitons
Information processing
Lasers
Magnetic fields
Nuclear interactions
Nuclear spin
Pumps
Quantum dots
Quantum states
Semiconductor research
Semiconductors
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Summary:Semiconductors have uniquely attractive properties for electronics and photonics. However, it has been difficult to find a highly coherent quantum state in a semiconductor for applications in quantum sensing and quantum information processing. We report coherent population trapping, an optical quantum interference effect, on a single hole. The results demonstrate that a hole spin in a quantum dot is highly coherent.
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.1173684