双模

Let H be a bialgebra , M be an H - Hopf bimodule .Suppose H⊕M is a bialgebra .

设H是双代数，M是H - Hopf双模，再设H⊕M是双代数。

So, in the past decade the single-, two- and multi-mode bosonic realizations of the SU(1,1) Lie algebra have been receiving a lot of attention.

因此，在过去几十年内，人们大量讨论了单模，双模和多模SU(1，1)李代数的玻色子算符实现形式。

Allow to express, the 2G market with the biggest whole world is in China, before China does not have 3G of mount a horse, the 3G technology of Motolora does not have the ground of use force, china should extend now 3 3G license plate, china is the world go up exclusive the country with a 3 3G concomitant standard, because of this pair of models even opportunity of 3 models hand has very big market demand, motolora can use the technology in 3G respect, go the client of competitor of race to control and market.

任表示，全球最大的2G市场在中国，在中国没有上马3G之前，摩托罗拉的3G技术没有用武之地，现在中国要发放3个3G牌照，中国是世界上唯一一个3个3G标准共存的国家，因此双模甚至三模手机会有很大的市场需求，摩托罗拉就可以利用在3G方面的技术，去抢占竞争对手的客户和市场。

The other, involving Chapter 7, is about the stationary probability distribution of a single-mode laser.

本论文进行了两个方面的研究，一个是关于噪声对双模激光模间竞争的影响，包括第二章至第六章的内容；另一个是用内插法计算单模激光的定态几率分布，为第七章的内容。

The results show that the entanglement of field-atom reduced to a stationary value with time evolution and the entanglement between two modes increase to another stationary value with intrinsic decoherence, and the values only depend on the two-mode photon number and mean photon number.

结果表明，存在内禀退相干时，随着时间的演化，场一原子纠缠逐渐减小到一个确定值，而模间纠缠逐渐增大到一个确定值，两者演化的最终值只取决于双模光子数差和平均光子数，而与内禀退相干因子无关。

In Chapter 4, a laser cavity which can separate the optic paths of the two modes in a two-mode laser is proposed, which makes it possible to stochastically modulate the two mode loss parameters in different ways.

在第4章中我们利用一种光学谐振腔分开双模激光中两个模的光路，从而使对两个模的损失参数进行不同的随机调制成为可能。

The phase tracking principle of source-contained homodyne detection is researched, the frame diagram for phase detection and experimental results are given.

介绍了一种新型的光纤电压传感器结构和工作原理，分析了系统中椭圆芯双模光纤的传输模式和模间相干光斑的变化，采用熔接的方式进行相干光接收来获得正交相位漂移信号，根据模间群折射率差与光程差的关系设计调整光纤的长度，依据石英晶体和空气的绝缘强度进行传感光纤匝数设计，讨论了含源零差探测法的相位跟踪原理，给出了相位检测框架图及实验结果，分析表明该设计方案能达到相位跟踪的目的。

At high temperature, the carriers of low energy band thermalize and the carriers of high energy band dominate the luminescence.

Ga〓In〓P喇曼模表现为双模形式：类GaP的LO〓模（无序样品在383cm〓，有序样品在381cm〓）和在360cm〓处类InP的LO〓模。

The results show that the atomic population is time-independent provided that the atoms are in |β11〉 state. For the other three Bell states, there will appear the periodical collapse revival of atomic populationif the initial mean photon number reaches some special values. With the increase of the initial mean photon number, the oscillation frequency of the time-evolution of atomic population increases correspondingly, and the amplitude decreases. The degree of the entanglement of the two-mode entangled coherent field has no

结果表明，当双原子体系的初态为|β11〉时，原子布居均不随时间变化；当双原子体系的初态为|β00〉，|β01〉或|β10〉且初始平均光子数达到一定值时，演化特性呈现周期性的崩塌-回复效应，并随初始光子数的增加，其演化曲线的振荡频率增大，振幅减小；双模纠缠相干光场的纠缠程度不影响Rabi振荡频率，但对振幅影响显著； Kerr介质与光场耦合系数达到一定值时，对Rabi振荡频率和幅度及原子布居的崩塌-回复周期产生强烈影响。

Under an appropriate condition, the squeezed vacuum field can trap the two atoms inri.An analytical expression of emission spectrum for three-level atom interacted with two-mode cavity field is given. The effects of the initial state of system on the emission spectrum for three-level atom are explored.

我们给出了好腔中与双模腔场相互作用的三能级原子发射谱的一般表达式，探讨了系统初态对三能级原子发射谱的影响，阐明了只有原子和双模驱动场初始时刻均处于相干叠加态，原子不同跃迁通道间的量子干涉才使得原子发射谱呈现相位敏感性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。