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Pulse Designed Coherent Dynamics of a Quantum Dot Charge Qubit |
| CAO Gang, WANG Li, TU Tao**, LI Hai-Ou, XIAO Ming, GUO Guo-Ping** |
Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026
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| Cite this article: |
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XIAO Ming, WANG Li, TU Tao et al 2012 Chin. Phys. Lett. 29 030306 |
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Abstract We propose an effective method to design the working parameters of a pulse-driven charge qubit implemented with double quantum dot. It is shown that intrinsic qubit population leakage to undesired states in the control and measurement process can be determined by the simulation of coherent dynamics of the qubit and minimized by choosing proper working parameters such as pulse shape. The result demonstrated here bodes well for future quantum gate operations and quantum computing applications.
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| Keywords:
03.67.Lx
03.65.Yz
03.65.Ta
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Received: 20 October 2011
Published: 11 March 2012
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| PACS: |
03.67.Lx
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(Quantum computation architectures and implementations)
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03.65.Yz
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(Decoherence; open systems; quantum statistical methods)
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03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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