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10 September 2019 Ultrafast spin dynamics and control in single quantum emitters (Conference Presentation)
Denis V. Seletskiy, Christian Traum, Alfred Leitenstorfer
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Proceedings Volume 11090, Spintronics XII; 1109011 (2019) https://doi.org/10.1117/12.2531175
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States
Abstract
Reliable storage and manipulation of spin coherence is at the heart of quantum information processors. Isolated singly-charged semiconductor quantum dots (QDs) are typically characterized by bright ground state emission and hold promise as efficient spin-to-photon interfaces. Ultrafast interactions in condensed phase could enable high-bandwidth information processors, with an additional possibility to engineer quantum properties of light on sub-picosecond timescales. Toward these goals, we employ multi-color femtosecond write and readout pulses to analyze intrinsic spin dynamics in isolated singly-charged epitaxial CdSe/ZnSe QDs. With this we demonstrate control over single-photon-added amplification as well trion quatnum beats, arising from long intraband coherence.
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Denis V. Seletskiy, Christian Traum, and Alfred Leitenstorfer "Ultrafast spin dynamics and control in single quantum emitters (Conference Presentation)", Proc. SPIE 11090, Spintronics XII, 1109011 (10 September 2019); https://doi.org/10.1117/12.2531175
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KEYWORDS
Spin dynamics
Ultrafast phenomena
Quantum information
Data processing
Femtosecond phenomena
Heart
Interfaces
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