rotating wave

With rotating-wave approximation, the non-dam ped solutions the dynamic population equations with resonance excitation were deduced.

利用旋转波近似方法给出了共振激发和无衰减时粒子数运动方程的解析解.

Two Level Reduction of a Ξ Type Three Level Hamiltonian without Rotating Wave Approximation

非旋波近似下Ξ型三能级哈密顿量的两能级简化

Finally, we make a comparison of our results with those under the rotating wave approximation.

所得结果与旋转波近似下的结果作了比较。

using electric dipole moment and the rotating wave approximation and matrix theory, the dispersion and absorption properties of the quasi-lambda four-level system driven by different relative phase are investigated on the condition of the interaction representation.

在相互作用表象下，运用电偶极矩和旋转波近似及其密度矩阵方程理论，探讨了准∧型能级系统中相干光场之间的不同的相对相位对探测光场的色散和吸收的影响。

Mathematic expression of temperature and rate of change of temperature to time at the point ( xO, yO, zO) at any time of laser rotating mirror scanning wideband temperature field is developed and "traveling-wave method of temperature wave line" is put forward.

提出了温度波线行波法，并推导出激光转镜扫描宽带温度场任意时刻点（x0，y0，z0）处的温度和温度对时间变化率的数学表达式。

By analyzing the tidal wave movement in a rectangular basin with uniform depth, a typical problem of standing wave of two-dimensional long wave on the rotating globe is studied.

通过分析等深矩形海湾里的潮波运动，研究了旋转球体（地球）上二维水体长波的一个典型驻波问题。

In this system, we provided some functions, such as scanning, rotating, image clipping, geometric proportion scaling, cleaning horizontal and vertical lines, wave tracking, etc.

该系统以图像处理技术为基础提供次声波形图扫描，倾斜矫正，图像剪切，去除水平线和垂直线，波形跟踪等功能。

When the gas flow and the rotating speed are invariable and the fluid flux is smaller, the pressure drop of wire packing RPB is higher than the pressure drop in wave form disk plate packing RPB in the same fluid flux;

在气流量和转速不变的操作条件下，当液流量较小时，丝网填料旋转床的气体压降大于碟片填料旋转床的气体压降；