| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Manipulative Properties of Asymmetric Double Quantum Dots via Laser and Gate Voltage |
| ZHAO Shun-Cai, LIU Zheng-Dong |
| School of Materials Science and Engineering, Nanchang University, Nanchang 330031Engineering Research Center for Nanotechnology, Nanchang University,Nanchang 330047Institute of Modern Physics, Nanchang University, Nanchang 330031 |
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| Cite this article: |
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ZHAO Shun-Cai, LIU Zheng-Dong 2009 Chin. Phys. Lett. 26 077802 |
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Abstract We present a density matrix approach for the theoretical description of an asymmetric double quantum dot (QD) system. The results show that the properties of gain, absorption and dispersion of the double QD system, the population of the state with one hole in one dot and an electron in another dot transferred by tunneling can be manipulated by a laser pulse or gate voltage. Our scheme may demonstrate the possibility of electro-optical manipulation of quantum systems.
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| Keywords:
78.67.Hc
42.50.Gy
73.21.La
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Received: 24 March 2009
Published: 02 July 2009
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| PACS: |
78.67.Hc
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(Quantum dots)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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73.21.La
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(Quantum dots)
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