查询词典 Hamiltonian

Since symplectic algorithms were brought forward by Kang Feng, two overflying developments took on: one is the generalization from finite dimensional Hamiltonian system to the infinite dimensional, the other is the generalization to multisymplectic algorithms.

自从冯康院士提出辛算法以后，这一算法有了两次大的飞跃和发展，一次是从有限维向无限维的推广，一次是向多辛算法的深入发展。

Based on the electron-lattice interaction,Frohlich Hamiltonian and quantization theory are used to deduce the dimerized energy gap and phase transition temperature of carbon nanotube.

依据碳纳米管中电子-声子相互作用的原理，采用哈密顿量、量子化理论推导了二聚化对应能隙和相变温度，在紧束缚近似、量子理论和能带理论的基础上，利用周期性边界条件对碳纳米管Π电子进行了分析，讨论了碳纳米管的导电性，预测了室温下碳纳米管碳管中载流子输运方向

Where is a single-particle Hamiltonian of noninteracting fermions.

其中， 是非作用费米子的单粒子哈密顿量。

Analysis of tube-in-tube structure of variable cross-section in torsion;2. By assuming the structure to be continuous,the Hamiltonian dual system of coordination analysis is established for tube-in-tube structure s,in which the shears and flexures of the inter and the outer tubes are considered as Timoshenko beams.

在结构连续化假定的基础上，将内筒和外筒视为铁摩辛柯梁，同时考虑内筒和外筒的剪切与弯曲变形，建立了筒中筒结构协同分析的哈密顿对偶体系，导出了相应的状态空间方程，其系统矩阵具有辛矩阵的特性，可用精细积分法求该体系的高精度数值解。

Also we have estimated that when the order of experi- mental resolution reaches to 10-14,we will have to use state evolution matrix to describe the neutral kaon system and can not use the effective Hamiltonian theory.

这样的理论是否可靠，它究竟准确到什么程度，一直是人们关心的问题。文献中不断有文章进行讨论［'。大致说来，可以把对传统有效哈密顿量理论的修正分为两类。

neutral kaon system, effective Hamiltonian theory, state evolution matrix, CP and CPT violation parameter

一类仍采用有效哈密顿量描述体系，但有效哈密顿量不再只准到弱作用二阶，而是包括了高阶修正项。

Finally, in accordance with the parallel structures of the computations on train dynamics, an optimal interconnected architecture, namely Hamiltonian-Circuit-ConnectedTernary-Tree , is presented for transputer multiprocessor system, which includes the architectures of both Averaged-and-Balanced-Ternary-Tree and ring under the condition that connection degree is less than or equal to 3 for root node and less than or equal to 4 for other nodes.

最后，针对列车动力学计算的并行结构，提出Transputer多机系统的一种最佳的静态互连结构——Hamilton回路连接三元树，该结构在根节点的度和其它节点的度的前提下同时兼备了均衡三元树和环两种结构。

Starting from RTT re-lations the integrable Hanfiltonian of thc q-deformation Goryachev-Chaplygin quan-tum top is established,which can reduce to the Hamiltonian of Hubbard model byusing multi-fermion realization of SUq(2)algebra and mean-field approximation.

从RTT关系式出发，我们建立了一个可积的哈密顿量，就是q-形变的Goryachev-Chaplygin量子陀螺，通过SUq(2)代数的多费米子实现和平均场近似，此量子陀螺可以和凝聚态理论中的Hubbard模型联系起来。

In the following, we quantize the supersymmetric anyon system according to the rule of path integral quantization for constrained Hamiltonian system in Faddeev-Senjanovic scheme. We calculate the quantal conserved angular momentum based on the quantal canonical Noether theorem, and present the fractional spin property at the quantum level.

根据约束系统的Faddeev-Senjanovic路径积分量子化方法，我们对超对称任意子系统进行了量子化；根据经典Noether定理，得到了系统的守恒角动量；用量子正则Noether定理讨论了量子守恒角动量，我们发现了系统具有分数自旋性质。

It is then proved that every equation in the hierarchy possesses the Hamiltonian structure if L has a skew-symmetric factorization and the first equation in the hierarchy satisfies some simple condition (K〓=θf〓 and f〓 is a gradient function).

然后在L具有反对称分解L=θJ，及等谱发展方程族中第一个方程满足简单条件（K〓=θf〓，f〓一个梯度函数）的假设下，获得了整个方程族的Hamilton结构。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。