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In this thesis, spontaneous emission from three-level atom in Photonic Crystal has been investigated.

本论文研究的主要内容为处于光子晶体内的三能级原子的自发辐射荧光行为。

We have studied the properties of spontaneous emission from a three level atom embedded in a photonic crystal.

研究了三维光子晶体中三能级原子自发发射的性质。

The intensity and phase of the external field can also control spontaneous emission from the atom.

驱动场的强度和入射位相也能控制光子晶体中三能级原子的自发辐射。

The spontaneous emission of a four-level atom embedded in a one-dimensional photonic crystal is investigated.

本文研究了处于各向同性的一维光子晶体中的单个四能级原子的自发发射性质。

Show, for a Thom son atom, that an electron m oving in a stable circu lar orbit

在汤姆逊原子中，试证明：电子在一稳定圆周轨道上旋转的频与它沿直

Simulation of sodium atom deposition pattern in a laser standing wave field.

激光驻波场中钠原子沉积图样的理论研究。

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。

It makes no sense at all to speak of a stationary electron in an atom.

谁要说原子内有一个静止的电子，那是毫无意义的。

In both of the complexes, the copper atom is five ligated by similar atoms, but the stereochemistry of them is different.

在这两个配合物中，铜原子的配位情况相似，但是几何构型却大不相同。

For lactic acid has one asymmetric carbon atom, the mechanical, physical and biological properties of PLA are related to the stereochemistry of lactic acids.

合成聚乳酸的初始物质―乳酸是有手性的分子，使得聚乳酸的机械和物理性能以及生物学性质与乳酸单体的立体异构性有关。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。