Ultrafast electric phase control of a single exciton qubit
A. Widhalm, A. Mukherjee, S. Krehs, N. Sharma, P. Kölling, A. Thiede, D. Reuter, J. Förstner, A. Zrenner, Applied Physics Letters 112 (2018) 111105.
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Journal Article
| Published
| English
Author
Widhalm, Alex;
Mukherjee, Amlan;
Krehs, Sebastian;
Sharma, Nandlal;
Kölling, Peter;
Thiede, AndreasLibreCat;
Reuter, DirkLibreCat;
Förstner, JensLibreCat 
;
Zrenner, ArturLibreCat
;
Zrenner, ArturLibreCat Department
Abstract
We report on the coherent phase manipulation of quantum dot excitons by electric means. For our
experiments, we use a low capacitance single quantum dot photodiode which is electrically
controlled by a custom designed SiGe:C BiCMOS chip. The phase manipulation is performed and
quantified in a Ramsey experiment, where ultrafast transient detuning of the exciton energy is
performed synchronous to double pulse p/2 ps laser excitation. We are able to demonstrate
electrically controlled phase manipulations with magnitudes up to 3p within 100 ps which is below
the dephasing time of the quantum dot exciton.
Keywords
Publishing Year
Journal Title
Applied Physics Letters
Volume
112
Issue
11
Page
111105
ISSN
LibreCat-ID
Cite this
Widhalm A, Mukherjee A, Krehs S, et al. Ultrafast electric phase control of a single exciton qubit. Applied Physics Letters. 2018;112(11):111105. doi:10.1063/1.5020364
Widhalm, A., Mukherjee, A., Krehs, S., Sharma, N., Kölling, P., Thiede, A., Reuter, D., Förstner, J., & Zrenner, A. (2018). Ultrafast electric phase control of a single exciton qubit. Applied Physics Letters, 112(11), 111105. https://doi.org/10.1063/1.5020364
@article{Widhalm_Mukherjee_Krehs_Sharma_Kölling_Thiede_Reuter_Förstner_Zrenner_2018, title={Ultrafast electric phase control of a single exciton qubit}, volume={112}, DOI={10.1063/1.5020364}, number={11}, journal={Applied Physics Letters}, author={Widhalm, Alex and Mukherjee, Amlan and Krehs, Sebastian and Sharma, Nandlal and Kölling, Peter and Thiede, Andreas and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}, year={2018}, pages={111105} }
Widhalm, Alex, Amlan Mukherjee, Sebastian Krehs, Nandlal Sharma, Peter Kölling, Andreas Thiede, Dirk Reuter, Jens Förstner, and Artur Zrenner. “Ultrafast Electric Phase Control of a Single Exciton Qubit.” Applied Physics Letters 112, no. 11 (2018): 111105. https://doi.org/10.1063/1.5020364.
A. Widhalm et al., “Ultrafast electric phase control of a single exciton qubit,” Applied Physics Letters, vol. 112, no. 11, p. 111105, 2018, doi: 10.1063/1.5020364.
Widhalm, Alex, et al. “Ultrafast Electric Phase Control of a Single Exciton Qubit.” Applied Physics Letters, vol. 112, no. 11, 2018, p. 111105, doi:10.1063/1.5020364.
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