The photon-number-dependent parts in the evolution operator are cancelled with the assistant of a strong classical field, so the scheme is insensitive to the thermal field.
在强经典场的作用下，演化算符与光子数无关，因此方案对热场不敏感。
Considering the initial atomic coherence and the detuning, dipole squeezing of a two-level atom interacting with squeezed vacuum field is studied by means of the time-evolution operator method.
文中采用时间演化算符，考虑到初始原子相干性及失谐量，研究了单个二能级原子与压缩真空态辐射场相互作用中原子的偶极压缩。
For the basic differential evolution algorithm, the increasing quadratic function crossover operator was added to increase the convergence speed.
在基本差分进化算法中，融入递增二次函数交叉算子以增加算法的收敛速度。
The immune memory units guarantee this algorithm rapid convergence to global optimum and the uniform crossover operator embody the idea of evolution.
算法中的免疫记忆单元确保了快速收敛于全局最优解，算法中的均匀交叉操作则体现了进化的思想。
The evolution opera tor, the reduce density operator and the dynamical properties of the field entropy evolution in the intensity - dependent coupling multiphoton J - C model are studied.
研究了依赖强度耦合多光子J—C模型的演化算符，约化密度算符及其场熵特性。
The new algorithm has two main characteristics: first, introduce the Gauss mutation operator of Evolution Strategies (ES) ; second, introduce variable searching subspace.
新算法的主要特点有两个：一是引入演化策略中的高斯变异算子，二是引入自适应搜索子空间。
Secondly, crossover is the key operator in the genetic algorithms, and it is impetus for evolution.
其次，交叉算子是遗传算法的核心算子，是遗传进化的动力。
The population evolution is implemented by the operators of agents such as competition and cooperation with the dynamic neighboring environment and self-learning operator with their own knowledge.
各智能体与其邻域环境的竞争与合作以及自身的自学习操作实现群体的演化过程。
A new real coding evolution algorithm is presented, which combines feedback mutation and multi-operator.
以达尔文进化论为基础，提出一种新的基于实数编码的反债式突变多算子遗传算法。
A new real coding evolution algorithm is presented, which combines feedback mutation and multi-operator.
以达尔文进化论为基础，提出一种新的基于实数编码的反债式突变多算子遗传算法。
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