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- Theoretical calculation for AMX spin system with density operators is given and coincides with the results of experiments. 它能有效地防止单量子相干的“漏进”并避免使用数字相移器。 在一般谱仪上容易实现,用密度算符理论对AMX体系进行理论计算,实验结果与理论预期相符。
- The effects of the nearest neighbour Coulomb repulsion on the distribution of the charge density and the spin density are also discussed. 系统内的第三近邻电子跳跃相互作用与最近邻格点间电子Coulomb排斥相互作用之间存在着竞争。 此外,对系统中的电荷密度和自旋密度分布受最近邻格点间电子Coulomb相互作用影响情况亦进行了讨论。
- The condensed phases such as charge density wave (CDW), spin density wave (SDV) and superconducting phases are predicted within the random phase approximation (RPA). 在无规周相近似(RPA)范围内得到各种有序相:电荷密度波(CDW)、自旋密度波(SDW)及超导相存在的可能性,指出发生这些相变的条件。
- As temperature decreases, paramagnetic-commensurate spin density wave(CSDW)-incommensurate spin density wave(ISDW) transition occurs in the Cr97.02Al2.98 alloy. 随着温度降低;Cr97.;02Al2
- The effect of spin density wave on 2+1 dimensional BCS-type super-conductors with the next nearest neighbor interaction is investigated with themean-field approximation. 本文研究具有次近邻互作用的2+1维BCS型超导体与自旋密度波共存的系统。
- We calculate variations of the charge density wave (CDW) and the spin density wave (SDW) gaps,ad well as their classical trajectory ? c,s with increasing on-site Coulomb repoulsion potential. 通过自旋密度波和电荷密度波的位相结构的变化 ;并结合其相应能隙的变化 ;得到以下结论 :系统的Ising相变与Mott相变不重合 ;中间有一个SDI(spontaneouslydimerizedinsulating)的过渡相 .
- Based on a theoretical model for interchain coupled quasi-one-dimensional organic ferromagnet, the charge density wave(CDW) and spin density wave(SDW) that exist in the system are investigated. 基于考虑链间耦合的准一维有机铁磁体的理论模型 ;对存在于系统内的电荷密度波 ( CDW)和自旋密度波 ( SDW)进行了研究 .
- Besides, with the Hamiltonian of the interaction between the field and the atom with Kerr medium, the evolution operator and the reduced density operator of the field are derived, then the other basic work model is obtained. 其次，从光场与原子附加克尔介质相互作用哈密顿量出发，得出非线性J-C模型系统的一般时间演化算符和光场的约化密度算符，得出了本文的基本工作模型之二。
- On the basis of optimized geometries,the charge densities,spin density,bond orders and electronic spectra of above molecule and cation have been calculated. 以优化构型为基础计算其电荷密度、自旋密度、键序和电子光谱。
- Mean Field Theory and Spin Density Wave 平均场理论和自旋密度波
- multiple spin density wave state 多路旋转密度波状态
- Nonequilibrium statistical density operator 非平衡态统计算符
- incommensurate spin density wave 无公度旋转密度波
- MAXWELL VELOCITY DISTRIBUTION LAW DERIVED WITH DENSITY OPERATOR 用密度算子推证麦克斯韦速度分布律
- SPIN DENSITY WAVE OF ORGANIC FERROMAGNETS WITH OPEN ENDS 非闭环结构下有机磁性材料中的自旋密度波性质
- The Reduced Atomic Density Operator in the Raman-coupled Model Raman耦合模型中原子的约化密度算符
- The lorry went into a spin on a patch of ice. 卡车在一片冰地上打滑了。
- USING DENSITY OPERATOR TO STUDY THE ELECTRON POLARIZATION 用密度算符对电子极化的研究
- Let's go for a spin in my new car. 坐我的新汽车兜一圈吧。
- I've been in a real spin all morning. 我整个上午都晕头转向的。
