采用密度矩阵方法描述了两模反向耦合。
In this paper the method of density matrix is used to describe two coupled modes.
本文用密度矩阵方法严格处理了在共振情况下二能级系统时间分辨简并四波混频问题。
In this paper, the time-resolved degenerate four-wave mixing in two-level system is treated rigorously with the density-matrix method.
给出了基于隶属度矩阵的模糊积分密度确定方法，介绍了基于模糊积分的分类器集成算法。
For this object, a method of determining fuzzy integral density with membership matrix is proposed, and the classifier ensemble algorithm based on fuzzy integral is introduced.
通过密度矩阵重整化群的方法，我们研究了不同系统中的基态纠缠。
By using the method of density matrix renormalization group, the ground state entanglement in different systems is studied.
我们利用密度矩阵重整化群方法来研究熵的对数行为。
The method of density matrix renormalization-group is applied to obtain logarithmic behavior of the entropy.
该方法不是从第一原理出发，因为耗散环境应该被看成是自由度为无限维的谐振子或原子系统，对它的求解最好的方式是求解约化密度矩阵方程。
This method is not from the first principle. A better approach is based on the reduced density matrix, which eliminate the infinite number of the freedoms of the dissipative environment.
提出平均场壳模型下原子核单体密度矩阵的一种计算方法，验证该方法的可靠性。
A method calculating one body density matrix of nucleus in the mean field shell model is proposed.
提出了用求条件后验密度的方法证明统计分析中的两个矩阵等式的方法。
We propose a method for proving two matrix identities, which are often used in statistical analysis, based on knowledge of conditional posterior density.
该方法根据测向信息，构造误差概率密度和矩阵，根据矩阵参数将测量区域内概率密度和的最大值点判定为辐射源位置。
The algorithm constructs a error-probability density sum-matrix according to direction finding information, and determines the target which has the highest error probability density sum in the area.
用密度矩阵的方法从理论上分析了不同频率的两个激光场混合泵浦的光纤放大器中，由光场诱导的原子相干效应。
The effects of atomic coherence on fiber amplifiers pumped by two lasers with different frequences are studied by using density matrix theory.
这种方法通过由相关函数抽样序列形成的协方差矩阵控制序列的相关性，适用于仿真具有不同概率密度函数的各种有限长相关的随机序列。
This method can control the series correlation via covariance matrix that was formed from correlation series and is suit for simulating finite correlated random series of different distributions.
六角形节块内的中子通量密度分布采用高次多项式近似表示，最后导出通量矩方程及偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。
The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.
首先介绍了SLR脉冲设计思想，然后基于密度矩阵理论，应用计算机模拟方法对所设计脉冲的激发带宽进行模拟。
In this article, we present a design method of the SLR pulse. Subsequently, based on density-matrix theory, computer simulations are used to show the excitation profiles of the designed SLR pulses.
由单体密度矩阵计算得到的核子密度分布等与实验数据、理论值和其他方法的计算结果作了比较。
The nucleon density and momentum distributions are calculated and compared with those of Hatree-Fock-Bogolubov theory and experimental data, respectively.
提出了一种基于置换矩阵的非规则低密度奇偶校验(LDPC)码的校验矩阵设计方法。
A design of parity check matrix for Irregular LDPC codes based on per mutation matrix is proposed in this paper.
提出了一种基于置换矩阵的非规则低密度奇偶校验(LDPC)码的校验矩阵设计方法。
A design of parity check matrix for Irregular LDPC codes based on per mutation matrix is proposed in this paper.
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