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Phase Dynamics in Charge Qubits

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We present results of detailed numerical analysis of phase dynamics in charge qubits based on coupled quantum dots. The Chebyshev-Fourier expansion of the propagation operator is employed since it provides the accuracy required for phase calculations. Our results show that phase leakage found in previous studies is an anomaly associated with the simulation process. Details of the design of quantum phase gates is also presented.


Document Type: Research Article


Publication date: November 1, 2008

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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