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Quantum entanglement and quantum nonlocality of N-photon entangled states |\psiN m\rangle
=Cm[\cos\gamma|N-m\rangle1|m\rangle2 +\e{\i\θm}\sin\gamma|m\rangle1|N-m\rangle2] and their superpositions are studied. We point out that the relative
phase θm affects the quantum nonlocality but not the quantum
entanglement for the state |\psiN m\rangle. We show that
quantum nonlocality can be controlled and manipulated by adjusting
the state parameters of |\psiN m\rangle, superposition
coefficients, and the azimuthal angles of the Bell operator. We
also show that the violation of the Bell inequality can reach its
maximal value under certain conditions. It is found that quantum
superpositions based on |\psiN m\rangle can increase the
amount of entanglement, and give more ways to reach the maximal
violation of the Bell inequality. 相似文献
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Studies on the complexes containing formate have never been stopped for a half century. In this paper, a new copper(Ⅱ) complex, [Cu2(phen)2(HCOO)2( μ-OH)2][Cu2(phen)2(H2O)2(μ-OH)2](HCOO)2·10H2O (1) (phen=1,10-phenanthroline), has been synthesized and characterized by elemental analysis, IR, and X-ray diffraction single crystal structure analysis. It belongs to triclinic system, with space group P1, a=1.151 7(3) nm, b=1.162 6(3) nm, c=1.216 0(3) nm, α=74.672(4)°, β=67.291(4)°, γ=79.029(4)°, V=1.441 4(6) nm3. The four copper(Ⅱ) ions in the complex are all 5-coordinated and exhibit a distorted square pyramidal coordination environment. The molecule are connected by intermolecular hydrogen bonds (C-H…O) interactions and π-π stacking, resulting in a three-dimensional network. CCDC: 648152. 相似文献
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A method is provided for finding an initial regular solution of a linear programming in this paper. The key to this method is to solve an auxiliary linear programming instead of to introduce any artificial variable or constraint. Compared with the traditional method of achieving the regular solution by introducing an artificial constraint, it has advantages of saving the memories and little computational efforts. 相似文献
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大孔吸附树脂结合酶解法分离纯化虎杖中白藜芦醇的研究 总被引:1,自引:0,他引:1
研究了大孔吸附树脂结合酶解法提取和纯化虎杖中白藜芦醇的方法,采用HPLC法测定虎杖中白藜芦醇的含量,考查了β-糖苷酶对虎杖药材酶解前后白藜芦醇含量的变化,并经静态吸附考察了4种树脂,最后确定以H1020作为提取分离白藜芦醇的树脂.此树脂吸附量较高,脱附容易,有利于得到质量较好的白藜芦醇产品,经该树脂吸附解吸,饱和吸附量可达51.4mg/g,解吸率达92.5%.大孔树脂分离纯化白藜芦醇的含量可达71.5%,而上柱前粗提物中白藜芦醇含量为8.71%,说明采用本法分离纯化虎杖中白藜芦醇是可行的. 相似文献
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从烟碱型乙酰胆碱受体(nACHR)-烟碱(nicotine)复合体晶体模型出发, 采用SYBYL 6.92软件包中FlexX分子对接模块对新烟碱类化合物的3种已上市化合物吡虫啉、噻虫啉、烯啶虫胺和3种吡虫啉的结构衍生物同受体蛋白作用的精确模型进行了研究. 通过全局搜索方法构建配体的构象库进行对接, 依据构象间RMS值对结果进行分类结合CScore打分函数数据对对接结果进行筛选, 最终给出合理的新烟碱类化合物-烟碱型乙酰胆碱受体的药效作用构象模型: 配体吡啶环上氮原子通过水分子同受体Leu102, Met114形成氢键并且咪唑环或噻唑环上亲水侧链同受体CYS187或SER186形成氢键, 疏水侧链同疏水部位A (TYR164, TRP53, TYR89以及TYR185残基), 或疏水部位B (TYR132, CYS187和CYS188)相互作用. 此模型同早先有关文献报道的试验结果部分吻合, 充分表明了其合理性. 同时依据本构象模型, 在新烟碱类化合物结构方面提出了一些改良建议并为研究其高选择性指出方向. 相似文献
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