Abstract
The coherent state manipulation of single quantum systems is a fundamental requirement for the implementation of quantum information processors. Exciton qubits are of particular interest for coherent optoelectronic applications, in particular due to their excellent coupling to photons. Until now, coherent manipulations of exciton qubits in semiconductor quantum dots have been performed predominantly by pulsed laser fields. Coherent control of the population of excitonic states with a single laser pulse, observed by Rabi oscillations, has been demonstrated by several groups using different techniques1,2,3. By using two laser pulses, more general state control can be achieved4, and coupling of two excitons has been reported5,6. Here, we present a conceptually new approach for implementing the coherent control of an exciton two-level system (qubit) by means of a time-dependent electric interaction. The new scheme makes use of an optical clock signal and a synchronous electric gate signal, which controls the coherent manipulation.
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References
Stievater, T. H. et al. Rabi oscillations of excitons in single quantum dots. Phys. Rev. Lett. 83, 133603 (2001).
Kamada, H., Gotoh, H., Temmyo, J., Takagahara, T. & Ando, H. Exciton Rabi oscillation in a single quantum dot. Phys. Rev. Lett. 87, 246401 (2001).
Borri, P. et al. Rabi oscillations in the excitonic ground-state transition of InGaAs quantum dots. Phys. Rev. B 66, 081306 (2002).
Bonadeo, N. H. et al. Coherent optical control of the quantum state of a single quantum dot. Science 282, 1473–1476 (1998).
Li, X. et al. An all-optical quantum gate in a semiconductor quantum dot. Science 301, 809–811 (2003).
Unold, T., Mueller, K., Lienau, C., Elsaesser, T. & Wieck, A. Optical control of excitons in a pair of quantum dots coupled by the dipole–dipole interaction. Phys. Rev. Lett. 94, 137404 (2005).
Zrenner, A., Beham, E., Stufler, S. & Findeis, F. Coherent properties of a two-level system based on a quantum-dot photodiode. Nature 418, 612–614 (2002).
Takagi, H., Nakaoka, T., Watanabe, K., Kumagai, N. & Arakawa, Y. Coherently driven semiconductor quantum dot at a telecommunication wavelength. Opt. Express 16, 013949 (2008).
Stufler, S. et al. Two-photon Rabi oscillations in a single InxGa1–xAs/GaAs quantum dot. Phys. Rev. B 73, 125304 (2006).
Stufler, S., Ester, P., Zrenner, A. & Bichler, M. Ramsey fringes in an electric-field-tunable quantum dot system. Phys. Rev. Lett. 96, 037402 (2006).
Boyle, S. J. et al. Two-qubit conditional quantum-logic operation in a single self-assembled quantum dot. Phys. Rev. B 78, 075301 (2008).
Boyle, S., Ramsay, A., Fox, A. & Skolnick, M. Beating of exciton-dressed states in a single semiconductor InGaAs/GaAs quantum dot. Phys. Rev. Lett. 102, 207401 (2009).
Allen, L. & Eberly, J. H. Optical Resonance and Two Level Atoms (Wiley, 1975).
Zrenner, A. et al. Recent developments in single dot coherent devices. Phys. Status Solidi (b) 243, 3696–3708 (2006).
Kolodka, R. S. et al. Inversion recovery of single quantum-dot exciton based qubit. Phys. Rev. B 75, 193306 (2007).
Stufler, S., Ester, P., Zrenner, A. & Bichler, M. Quantum optical properties of a single InxGa1–xAs–GaAs quantum dot two-level system. Phys. Rev. B 72, 121301 (2005).
Acknowledgements
The authors acknowledge financial support from the German Federal Ministry of Education and Research (BMBF) through grant no. 01BM466 and from the German Research Foundation (DFG) research training group (no. GRK 1464).
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S.M.d.V. and A.Z. conceived and designed the concept and experiment. M.B. fabricated the sample. S.M.d.V. and S.G. performed the experiments. S.M.d.V., S.G. and T.M. developed the theoretical model. S.M.d.V., T.M. and A.Z. analysed the data and wrote the paper.
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Michaelis de Vasconcellos, S., Gordon, S., Bichler, M. et al. Coherent control of a single exciton qubit by optoelectronic manipulation. Nature Photon 4, 545–548 (2010). https://doi.org/10.1038/nphoton.2010.124
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DOI: https://doi.org/10.1038/nphoton.2010.124
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