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991.
992.
An Efficient Scheme for Implementing an N-Qubit Toffoli Gate with Superconducting Quantum-Interference Devices in Cavity QED 下载免费PDF全文
An alternative approach is proposed to realize an n-qubit Toffoli gate with superconducting quantum-interference devices (SQUIDs) in cavity quantum electrodynamics (QED). In the proposal, we represent two logical gates of a qubit with the two lowest levels of a SQUID while a higher-energy intermediate level of each SQUID is utilized for the gate manipulation. During the operating process, because the cavity field is always in vacuum state, the requirement on the cavity is greatly loosened and there is no transfer of quantum information between the cavity and SQUIDs. 相似文献
993.
A practical approach to robust impulsive lag synchronization between different chaotic systems 总被引:2,自引:0,他引:2 下载免费PDF全文
In this paper, a practical impulsive lag synchronization scheme for
different chaotic systems with parametric uncertainties is proposed.
By virtue of the new definition of synchronization and the theory of
impulsive differential equations, some new and less conservative
sufficient conditions are established to guarantee that the error
dynamics can converge to a predetermined level. The idea and
approach developed in this paper can provide a more practical
framework for the synchronization between identical and different
chaotic systems in parameter perturbation circumstances. Simulation
results finally demonstrate the effectiveness of the method. 相似文献
994.
Parylene C薄膜(Poly(ehloro-p-xylylene)),简称PC膜,具有优良的物理机械性能、抗溶剂腐蚀以及气体与水汽阻隔性能,是材料与电子器件防潮包覆的理想材料。PC膜也是一种典型的半结晶性聚合物,退火处理可改善其微观组织结构,提高其相对结晶度,提高其热稳定性。同时,退火处理也会使PC膜发生热降解,在含氧气氛中退火时,还将发生膜的热氧化与降解。 相似文献
995.
Two-dimensional (2D) slab photonic crystal waveguides (PCWGs) on silicon-on-insulator (SOI) wafer were designed and fabricated. Full photonic band gap, band gap guided mode, and index guided mode were observed by measuring the transmission spectra. Mini-stop-bands in the PCWG were simulated with different structure parameters. Coupling characteristics of PCWG were investigated theoretically considering the imperfections during the fabrication process. It was found that suppressing power reservation effect can realize both short coupling length and high coupling efficiency. 相似文献
996.
The non-local transport phenomenon induced by supersonic molecular beam injection (SMBI) was first observed in the HL-2A tokomak. In comparison with the phenomena induced by other methods in various tokamaks, it has its own feature: the effect induced by SMBI in HL-2A lasts much longer than that induced by pellet injection in other similar size tokomaks. Both the bolometer radiation and He emission decrease when the non-local effect appears. This suggests that an electron transport barrier has been formed at the position just outside the q = 1 surface when the non-local effect appears. 相似文献
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