共查询到20条相似文献,搜索用时 109 毫秒
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离子阱系统是实现量子计算和量子模拟的主要体系之一.世界范围内的各个离子阱研究小组共同推动着离子阱结构的丰富化发展,开发出一系列高性能的三维离子阱、二维离子芯片、以及具有集成器件的离子阱系统.离子阱的结构逐渐向小型化、高通光性和集成化方向发展,并表现出卓越的量子操控能力—对多离子的囚禁能力和精确控制能力越来越高.本综述将总结过去的十几年里离子阱在结构上的演化历程,以及离子阱在量子计算与量子模拟实验研究中的最新进展.通过分析具有代表性的离子阱结构,总结离子阱系统在加工工艺、鲁棒性和多功能性等方面取得的进步,并对基于离子阱系统的可扩展量子计算与模拟作出展望. 相似文献
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该文首先讨论在离子阱中,如何利用红、蓝失谐跃迁来构造量子计算所需的各种幺正矩阵。然后利用这些矩阵提出了一个实现两位量子搜寻的方案。 相似文献
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在多维球坐标体系中,我们对施主为束缚离子激子用二维方法求解薛定谔方程.研究表明,该方法对于半定量分析简便易行,并获得了一个重要的质量比σc=0.512. 相似文献
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讨论两个囚禁在Paul阱的对称轴上的超冷离子的量子统计特性,可以发现,它们的稳定囚禁不仅与阱的稳定区有关,而且与它们自身的自旋和电荷数大小有关。 相似文献
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ZHENG Shi-Biao 《理论物理通讯》2003,40(10)
We propose a scheme for the generation of superpositions of two Bloch states for a collection of ions. Inthe scheme the ions are trapped in a linear potential and interact with laser beams. Our scheme does not put anyrequirement on the Lamb-Dicke parameters. 相似文献
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ZHENG Shi-Biao 《理论物理通讯》2007,47(6):1049-1052
We propose two schemes for the implementation of quantum discrete Fourier transform in the ion trap system. In each scheme we design a tunable two-qubit phase gate as the main ingredient. The experimental implementation of the schemes would be an important step toward complex quantum computation in the ion trap system. 相似文献
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ZHENGShi-Biao 《理论物理通讯》2003,40(4):489-490
We propose a scheme for the generation of superpositions of two Bloch states for a collection of ions. In the scheme the ions are trapped in a linear potential and interact with laser beams. Our scheme does not put any requirement on the Lamb-Dicke parameters. 相似文献
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ZHENG Shi-Biao 《理论物理通讯》2004,41(3):373-376
We propose a simple and fast scheme to realize a
controlled-NOT gate between two trapped ions using a resonant laser pulse.
Our scheme allows the Rabi frequency of the laser field to be of the
order of the vibrational frequency and thus the time required to
complete the operation is greatly shortened, which is of importance in
view of decoherence. 相似文献
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By applying the nonlinear interaction between internal and external degrees of a trapped ion with theassistance of two pairs or three pairs of laser beams that are perpendicular to each other, the realization of quantumlogic operation without the limitation on the Lamb-Dicke parameter can be achieved when the lasers are tuned to thecarrier. 相似文献
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ZHENG Shi-Biao 《理论物理通讯》2006,45(6):1011-1012
We propose a scheme for realizing dense coding in cavity QED.
The scheme is based on the resonant interaction of two atoms
with a cavity mode. The scheme may be realizable with presently
available techniques in the microwave cavity QED setup. The idea
can also be generalized to the ion trap system. 相似文献
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K. Wies C. Geppert K. Blaum K. Brück H.-J. Kluge S. Schwarz K. Wendt 《Hyperfine Interactions》2005,162(1-4):29-38
A new type of resonance ionization laser ion source (RILIS) is presently being developed and tested at the off-line mass separator
at Mainz University for future use at on-line exotic rare isotopes production facilities. For highest isobaric selectivity,
this RILIS approach decouples the evaporation and ionization process. A further advantage is the generation of full temporal
control of the resulting high quality ion beam. These facts are realized by a combination of atomizer – ion repeller – ion
cooler and trap, which is operated together with a state-of-the-art, all solid state laser system. The principle and performance
of this laser ion source trap (LIST) system are discussed applying simulation studies for the repeller-trap combination and
first measurements for characterization. 相似文献
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