粒子自旋

从自旋波理论出发，通过直接求解Heisenberg模型，研究了低温下小粒子自旋体系的自发磁化规律。

Based upon the spin wave theory , the spontaneous magnetization of small particle system at low temperatures is studied by means of solving the Heisenberg model directly .

介观物理的粒子自旋轨道耦合和量子几何相位

Spin orbit coupling and quantum geometrical phase s in Mesoscopic Physics

3粒子自旋链的几何相位

Geometric Phase of the 3 - particle Spin Chain

麦克斯韦方程组的矩阵形式及对粒子自旋的初步探讨

The Form of Matrix of Maxwell 's Equations and the Preliminary Discussion on Particle Spin

本文从密度算符的一般性质出发进而引出电子极化的密度算符，即讨论描写粒子自旋状态的极化密度算符的表示矩阵。

This article begins with the normal quality and discusses the density operator of electron polarization .

长期以来，很多实验小组进行了与自旋有关的长程力的实验研究，探测这种新的相互作用对于探索粒子自旋对引力场的影响以及寻找自然界中可能存在的新的相互作用具有重要的意义。

There are a number of groups experimentally searching for spin-dependent long-range forces . These works are largely motivated to explore the role of spin in gravitation , and to search for a new force in nature .

三个自旋为1/2的粒子的自旋波函数

Spin Wave Function of Three Particles of Spin 1 / 2

所以这些粒子的自旋是一种内禀性质。

Therefore , the spin of these particles is an intrinsic property .

金属小粒子不同自旋态超导电性统计系综研究

Statistic ensemble study of superconductivity in different spin-states in small metallic grains

勿需测量坍缩假设的四粒子任意自旋态的量子隐形传输

Quantum Teleportation of Four-particle State of General Formation Without the Postulation of Collapse

粒子的自旋说明了它所服从的统计法类型。

The spin of a particle tells us the type of statistics it obeys .

研究了三粒子任意自旋态的隐形传输方案。

A scheme for quantum teleporting of a three-particle state of general formation is proposed .

作者运用代数动力学方法，计算了3粒子海森堡自旋链多体系统的几何相位。

Using algebraic dynamics , the geometric phase of a 3-particle spin chain has been calculated .

研究了各向异性耦合的三粒子海森伯自旋环链团簇在随时间变化的磁场中的运动。

We investigate an annular spin cluster made of three particles with anisotropic Heisenberg-chain controlled by a time-dependent magnetic field .

当具有能量散度的束流，通过西伯利亚蛇时不可能使束流中每个粒子的自旋矢都能绕纵轴转动的角度为π。

When beam with energy spread passes through Siberian Snake , spin vectors of all particles in this beam cannot rotate angle π about longitudinal axis .

化学诱导动态电子自旋极化（CIDEP）是由于顺磁粒子在其自旋能级间的非Boltzmann分布导致的。对于光解瞬态自由基的CIDEP，可以用时间分辨电子自旋共振（TRESR）波谱技术对其检测。

The phenomenon of transient populations in electron spin states deviating from the Boltzmann distribution has been known as chemically induced dynamic electron polarization ( CIDEP ), which can be tested by time-resolved ESR ( TRESR ) .

宇宙中组成物质的所有粒子都具有自旋的性质。

All particles which are the component of matter in the universe possess the property of spin .

数值计算的结果表明，在具有大量粒子数的自旋系统中，当温度较低的时候，实验上也能检测到纠缠态。

The numerical calculation shows that the entanglement in rather low temperatures in the solid state systems with a great number of spins can be detected .

建立以无相互作用的自族为1/2的粒子组成的自旋系统为工质，由两个绝热和两个等温过程组成的量子卡诺制冷循环模型。

The cycle model of a quantum Carnot refrigeration cycle working with many non-interacting spin-1 / 2 systems and consisting of two isothermal and two adiabatic processes is established .

通过研究实、虚两个自旋相干态的叠加态的反聚束效应，发现粒子数目和自旋相干态的参数η共同决定了这一类叠加态具有反聚束效应的量子态的数量。

The paper has studied the antibunching effect of superpositions with real and imaginary spin coherent states and found that both the numbers of particles and | η | in the spin coherent state decide the numbers of states with antibunching effect .

~（208）Pb中单粒子共振态的赝自旋对称性

Pseudospin symmetry of the single-particle resonant states in ~ ( 208 ) Pb

全同粒子系的轨道自旋

Orbital Spins in an Identical Particle System

首先，本文提出了一个耦合粒子对与海森堡自旋链相互作用的模型。

The free time evolution of the entanglement in a Heisenberg spin chain is also discussed . First , a model of a pair of coupled particles interacting with a Heisenberg spin chain is presented .

一对自旋粒子通过一个自旋粒子组成的圆环对称地耦合在圆环的两边，通过对称性分析和微扰理论，我们推导出系统的有效哈密顿量，计算出自旋粒子对的纠缠随时间的变化。

A pair of spin particles is coupled symmetrically on both sides of a ring composed of spin particles . By symmetry analysis and perturbation theory , the effective Hamiltonian of the system is derived . The time evolution of entanglement of the pair particles is calculated .

得到了粒子的能量分布不仅与粒子的质量、自旋量子数、角量子数、磁量子数有关，还与黑洞周围的时空结构及视界的变化有关。

We find that the energy distribution of Dirac particles not only depends on the mass , spin quantum number , angular quantum number and magnetic quantum number , but is also related to the structure of space-time and the variations of event horizon of black hole .

对于带自旋的全同粒子系，讨论了二次量子化表象中轨道自旋的性质，给出了将它们等效为粒子自旋的条件。

After exploring the properties of orbital spins in an identical particle system in the second quantization representation , the conditions are given for regarding the orbital spins as the particle spins .

当粒子间以铁磁方式耦合时，凝聚体中粒子的自旋分布与相互作用力程有关：对于短程作用系统，凝聚体中存在大小不同的自旋畴块，即为铁磁生长；

For the ferromagnetic coupling , however , the spin orientation distribution of the aggregates depends on the interaction range : for the short-range interaction , domains with different sizes are observed in the aggregates , i.e. , the aggregates exhibit ferromagnetic structure ;

从相对论波动方程和Lorentz变换理论出发，讨论了自旋粒子的相对论波函数，并给出了求相对论粒子高自旋态的方法。

From the relativistic wave equations and the Lorentz transformation theory , the relativistic wave functions of spin particles are discussed , a solution for high spin states of relativistic particle is given .

模拟结果表明，当粒子间以反铁磁方式耦合时，凝聚体中的粒子自旋交替凝聚。

The simulation shows that for the antiferromagnetic coupling , the spins of the particles in the aggregates tend to be oriented alternately .