Single spins in semiconductor quantum dot microcavities

Sven Höfling; Kristiaan De Greve; Peter L. McMahon; David Press; Leo Yu; Jason S. Pelc; Chandra M. Natarajan; Na Young Kim; Thaddeus Ladd; Eisuke Abe; Sebastian Maier; Dirk Bisping; Fabian Langer; Christian Schneider; Martin Kamp; Robert H. Hadfield; Alfred Forchel; M. M. Fejer; Yoshihisa Yamamoto

doi:10.1117/12.2025332

26 September 2013 Single spins in semiconductor quantum dot microcavities

Sven Höfling, Kristiaan De Greve, Peter L. McMahon, David Press, Leo Yu, Jason S. Pelc, Chandra M. Natarajan, Na Young Kim, Thaddeus Ladd, Eisuke Abe, Sebastian Maier, Dirk Bisping, Fabian Langer, Christian Schneider, Martin Kamp, Robert H. Hadfield, Alfred Forchel, M. M. Fejer, Yoshihisa Yamamoto

Author Affiliations +

Proceedings Volume 8813, Spintronics VI; 88130F (2013) https://doi.org/10.1117/12.2025332
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

Abstract

Semiconductor quantum dots can be utilized to capture single electron or hole spins and they have therewith promise for various applications in fields like spintronics, spin based quantum information processing and chiral photonics. We integrate quantum dots into semiconductor microcavities to enhance light-matter interaction for ultrafast optical manipulation and read-out. Single electron and single hole spins can be statistically or deterministically loaded into the quantum dots and coherently controlled. Within the about μs-coherence times of the spins about 10⁵ complete single qubit rotations can be performed with ultrafast optical pulses. By utilizing a Λ-type energy level system of a single quantum-dot electron spin in a magnetic field and ultrafast non-linear frequency conversion, quantum-dot spin-photon entanglement is observed.

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Sven Höfling, Kristiaan De Greve, Peter L. McMahon, David Press, Leo Yu, Jason S. Pelc, Chandra M. Natarajan, Na Young Kim, Thaddeus Ladd, Eisuke Abe, Sebastian Maier, Dirk Bisping, Fabian Langer, Christian Schneider, Martin Kamp, Robert H. Hadfield, Alfred Forchel, M. M. Fejer, and Yoshihisa Yamamoto "Single spins in semiconductor quantum dot microcavities", Proc. SPIE 8813, Spintronics VI, 88130F (26 September 2013); https://doi.org/10.1117/12.2025332

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