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This paper proposes a scheme to teleport an arbitrary mixture of diagonal states of multiqutrit via classical correlation and classical communication. To teleport an arbitrary mixture of diagonal states of N qutrits, N classically correlated pairs of two qutrits are used as channel. The sender (Alice) makes Fourier transform and conditional gate (i.e., XOR(3) gate) on her qutrits and does measurement in appropriate computation bases. Then she sends N ctrits to the receiver (Bob). Based on the received information, Bob performs the corresponding unitary transformation on his qutrits and obtains the teleported state. Teleportation of an arbitrary mixture of diagonal states of multiqudit is also discussed. 相似文献
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卫星搭载紫花苜蓿种子的拉曼光谱分析 总被引:1,自引:0,他引:1
为了了解卫星搭载对紫花苜蓿种子化学特性的影响,揭示空间诱变机理,文章利用傅里叶变换拉曼光谱法对卫星搭载当代的紫花苜蓿种子进行了研究。结果表明,与地面对照相比,飞行组在358和553 cm-1处的峰强增加,814,1 122,1 531,1 743 cm-1处的峰强降低,通过谱带归属发现,增强的358和553 cm-1分别与DNA和Ca2+有关,降低的4个峰与糖类、脂类有关。这说明经过卫星搭载后,苜蓿种子的DNA和Ca2+的量出现增加趋势,糖类与脂类的量出现降低趋势。其可能原因是(1)种子主动修复诱变产生的DNA损伤时,消耗部分贮存能量所致;(2)空间飞行过程中的超重导致种子细胞内的Ca2+ 浓度升高;(3)飞行因子导致种子提前萌发,DNA大量合成与复制,种子储藏的能量提前降解消耗。这一结果将对苜蓿空间诱变机理研究有重要参考价值。 相似文献
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We propose a scheme to generate a three-qubit three-IeveI singlet state in cavity QED, by placing three A-type SQUIDs in a single mode cavity. In this scheme, we make use of the interaction between the SQUIDs and cavity filed, and the classical pulses. The cavity fields are in vacuum state during the whole operation processes of creating the entanglement, and there is no quantum information transformation between the SQUIDs and cavity fields. Because of the advantage of the SQUID-cavity system, the quality factor of the cavity is greatly relaxed. 相似文献
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This paper proposes schemes for generating multiple-photon and multiple-atom cluster states, respectively. The schemes are based on the cavity input-output process and atomic or photonic states measurement, and the successful probabilities approach unity in the ideal case. The numerical simulations show that the produced multiple-particle cluster states have high fidelity even if the Lamb-Dicke condition is not satisfied. Some practical imperfections, such as atomic spontaneous emission and output coupling inefficiency, only decrease the success probability but exert no influence on the fidelity of generated multiple-particle cluster states. From the experimental point of view, smaller operation number and lack of need for individual addressing keeps the schemes easy to implement. These schemes may offer a promising approach to the generation of a large-scale cluster state. 相似文献
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钌离子催化氧化法研究大港减压渣油组分化学结构 总被引:1,自引:0,他引:1
利用钌离子催化氧化方法对大港减压渣油芳香分、胶质和庚烷沥青质进行了选择性降解,通过GC、GC-MS等分析手段对降解反应产物中一元正构脂肪酸、α,ω-二元正构脂肪酸和苯二~六元羧酸的含量和分布分别进行了定量分析。结果表明,芳香分、胶质和庚烷沥青质中的芳香结构上都存在大量烷基取代基和桥接不同芳碳的聚亚甲基桥。烷基取代基碳数最大约为33,聚亚甲基桥最大碳数约为24,而且这两种结构单元的含量均随碳数的增加而减少,并呈现出了偶碳优势。庚烷沥青质C12以下侧链相对较多而C16+较少,与芳香分的分布相反;正构烷基侧链的浓度按庚烷沥青质、胶质和芳香分的顺序递减。降解产物中都检测到了苯二甲酸到苯六甲酸等一系列的苯多酸,表明三个组分中都存在稠环芳香结构。庚烷沥青质中缩合程度较高的迫位缩合结构含量最高,芳香分渺位缩合结构最多,胶质介于两者之间。 相似文献
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Direct implementation of a scalable non-local multi-qubit controlled phase gate via optical fibers and adiabatic passage 下载免费PDF全文
This paper presents a direct implementation scheme of the non-local multi-qubit controlled phase gate by using optical fibres and adiabatic passage. The smaller operation number for implementing the multi-qubit controlled phase gate and needlessness for addressing individually save physical resource and lower the difficulties of experiment. Mean- while, the scheme is immune from some decoherence effects such as the atomic spontaneous emission and fibre loss. In principle, it is scalable. 相似文献
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