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classical field
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  经典场
     A scheme is proposed for generating squeezed and displaced Fock states of a cavity field via the Jaynes-Cummings model with the cavity mode driven by a classical field.
     提出一个方案以制备一个腔场的压缩位移福克态 ,它是基于腔模受经典场驱动的Jaynes-Cummings模型
短句来源
     A scheme is proposed for the generation of multi-mode entangled coherent states through the interaction of a multi-mode cavity field with an atom driven by a classical field.
     提出一种利用经典场驱动单个原子与一个多模腔场相互作用制备腔场的多模纠缠相干态的方案.
短句来源
     A Two-Level Atom Driven by a Bichromatic Classical Field
     双单色经典场驱动下的二能级原子系统
短句来源
     We present a scheme to generate a maximally entangled state of two separate cavity modes, by using the resonant interaction of a three-level atom and two separate cavity modes, using classical field and selecting the interaction time.
     并且提出这样一个方案,通过一个三能级Rydberg原子与两个真空腔场的共振相互作用,加上经典场的辅助作用,选取合适的相互作用时间,使两个分离腔场纠缠起来。
短句来源
     By analyzing and comparing the one-photon and two-photon processes occurring for various cases, it is found that for a squeezed vacuum, only when the carrier frequency of the squeezed vacuum equals the frequency of the driving field and the phase matching condition is fulfilled, will there be a strong two-photon resonant absorption from the squeezed vacuum (quite different from absorption of photons from a classical field).
     通过讨论和比较各种情况下的单光子和双光子过程,我们发现,在宽带压缩真空下,只有当压缩真空的载频等于驱动场的频率并且相位匹配条件(Φ=0)满足时,从压缩真空,原子才会产生强烈的双光子共振吸收(这与自经典场的光子吸收明显不同),否则,原子自压缩真空的双光子吸收率会大大的减小。
短句来源
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  经典域
     The theory and method of extenics were applied to establish classical field matter elements and segment field matter elements for reinforced concrete structure.
     为了充分考虑多种评估参数以提高结构损伤评估的准确性,应用可拓学理论和方法,给出钢筋混凝土结构地震损伤的经典域物元和节域物元;
短句来源
     Cai, the matter-element method of the slope stability evaluation is presented for the first time, and the classical field, the limited field, and the matter-element for appraising are determined.
     (4)针对边坡稳定性分析中存在的矛盾和不相容问题,以可拓学理论为基础,首次提出了基于可拓学理论的边坡稳定性评价方法。 定义了边坡稳定性评价的物元表达形式,确定了边坡稳定性评价物元的经典域、节域,以及待评物元。
短句来源
     The thesis uses extension classified prediction, principal components analysis, and R type cluster analysis methods, confirms environment index which affects sales of tobacco, and makes some attempt on selecting reasonable representation format of index shape and confirming values of classical field and partial field by mathematical statistics, and completes index selection blanks of influencing economical environment.
     本文利用可拓聚类预测方法,结合主成分分析、R型聚类分析方法对影响烟草销售的环境指标进行确定,并用数理统计方法对于选择指标形态的合理表现形式、经典域、节域值的确定做出了一定的探索,完善了可拓聚类预测方法在影响经济环境指标选取的方面的空白。
短句来源
     The grade of individual credit and the index for evaluating the level of individual credit are made as matter-element,meanwhile,the classical field,the segment field,the weight coefficient are obtained.
     该模型将个人信用等级、评价指标作为物元,从而得到经典域、节域、权系数.
短句来源
     By using extensics theory and method,the classical field matter-elements and segment field matter-elements are put forward on the basis of transformation of extensive set and analysis of correlation function,and matter-element extension model of expansive soils' expansive scale is established.
     应用可拓学的理论与方法,基于可拓学中的可拓集合变换和相关函数分析法,给出了膨胀土胀缩等级的经典域物元和节域物元,并建立了膨胀土胀缩等级的物元可拓识别模型。
短句来源
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  “classical field”译为未确定词的双语例句
     Although the dynamics of nondegenerate cascade two-photon laser was studied in the absence of atomic coherences and injected classical field, the dynamics of the system in the presence of atomic coherences and classical field has not been studied so far.
     尽管不考虑原子相干性和注入经典光场情况下非简并级联双光子激光器动力学行为已经有人研究过,但是到目前为止考虑了原子相干性和注入经典光场情况下系统动力学行为还没有人研究。
短句来源
     The results show that stable state and quasi-periodic attractor exist in effective two-photon lasers, and the time-delayed feedback can induce chaotic states in the presence of the injected classical field.
     结果显示,有效双光子激光中存在稳态和准周期吸引子,延迟反馈在注入光场存在的情况下能够引起混沌运动。 在混沌控制理论中,人们用延迟反馈来达到控制混沌到稳定轨道的目的,而在这里,延迟反馈能让系统由稳定的运动进入混沌运动。
短句来源
     In this paper, the model which consists of homogeneous broadened three atomic level is proposed, when both the pump classical field and laser field exist we discuss the gain, frequency pulling and threshold condition of the weak pumping.
     本文给出一均匀增宽的三能级原子模型,在泵浦场和激光场同时存在时,讨论了双光子激光的增益、频率位移及弱泵浦时,稳态运转的阈值条件。
短句来源
     FIELD ENTROPY EVOLUTION OF SPONTANEOUS EMISSION IN THE JAYNES-CUMMINGS MODEL WITH THE ATOM DRIVEN BY THE EXTERNAL CLASSICAL FIELD
     仅激励原子的经典外场的Jaynes-Cummings模型中自发辐射场的场熵演化特性
短句来源
     WAVE FUNCTION OF SPONTANEOUS EMISSION IN THE DRIVEN JAYNES-CUMMINGS MODEL WITH THE EXTERNAL CLASSICAL FIELD DRIVING THE ATOM
     外加经典激励场(仅激励原子)的Jaynes-Cummings模型中辐射场的波函数
短句来源
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  classical field
A quasi-energy operator in the Jaynes-Cummings model in a polychromatic classical field
      
Such a Hamiltonian has a singularity in the dimensionless amplitude σ of a classical field.
      
A classical field system is considered that consists of two interacting scalar fields, the Higgs real field and a complex scalar field.
      
Two-photon Jaynes-Cummings systems interacting with a classical field
      
If a two-level atom is in the two-photon resonance with a quantized mode and simultaneously inter-acts with a quasi-resonance classical field, then a photon exchange is observed in this system between the quantized and classical modes.
      
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We shall show that Continuous symmetry transformatins in Mechanics Quantum Mechanics, Classical field theory and Quantum field theory, Which Leave the equation of motion invariant, will generate Conservation Laws without use Noether theorem of Lagrangian formalism. In the non-Abelian gauge theory, Synchrononous Symmetry Invariant perhaps yields a Conservative angular momentum of the field, The Spin and isopin both Contribute to angular momentun.

物理系统的非拓朴性守恒量与此系统的对称性有密切关系,根据对称性导出相应的守恒律这个基本问题,现今所采用的观点和方法极不统一,这样就带来了不必要的混淆。本文试企从统一的观点来讨论这个问题,即从对称变换保持系统的动力学方程(以及对易关系):不变出发,分别来推导相对论力学、量子力学、经典场论、量子场论中的连续对称变换所产生的守恒律,而不借助于拉格朗日体制的Nther定理。把结果用于非Abel规范理论中,同步对称不变性导致场的守恒角动量表明,自旋和同步旋对场的角动量均有贡献。

In this paper, the model which consists of homogeneous broadened three atomic level is proposed, when both the pump classical field and laser field exist we discuss the gain, frequency pulling and threshold condition of the weak pumping. We also discuss the effect of the coherent pumping on the laser line width. The results are compared with what derived for non-coherent pumping and no-pumping.

本文给出一均匀增宽的三能级原子模型,在泵浦场和激光场同时存在时,讨论了双光子激光的增益、频率位移及弱泵浦时,稳态运转的阈值条件。同时讨论了相干泵浦对激光线宽的影响。其结果和仅存在非相干泵浦和泵浦不存在时的结果作了比较。

Photoionization spectra of Ca and Sr atoms above the classical field-ionization threshold are observed by using two-photon excitation method. The relation between the resonances and the applied electric field as well as polarization, of laser beam are discussed.

用双光子激发的方法观察了Ca,Sr原子在电场中经典场电离限以上的激发光谱。讨论了光谱共振结构与电场和光的偏振的关系。

 
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