方阱勢 的英文怎麼說

中文拼音 [fāngjǐngshì]
方阱勢 英文
square-well potential
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 阱 : 名詞（捕野獸用的陷坑） trap; pitfall; pit
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  1. Compare the system ' s classical chaos motion between the double - potential well in the tiled magnetic field and that of potential well including biquadratic term

    比較了傾斜磁場作用下的雙勢阱和含有4次方的勢阱兩種情況下系統的經典混沌運動特徵。
  2. In 1995, the experiment of resonant tunneling diode in a magnetic field tiled by an angle with respect to the tunneling direction was accomplished by t. fromhold and b. willkinson etc. subsequently, e. e. narimanov and a. d. stone have theoretically studied this system with the square - potential well model

    例如， 1995年， t . fromhold和b . willkinson等人所做的傾斜磁場作用下的共振隧穿二極體實驗，以及后來由e . e . narimanov和a . d . stone等人採用方勢阱模型進行的理論研究。
  3. It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained

    文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹，然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法，把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子，利用瞬子方法給出基態能級劈裂，最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子，從而給出由於熱助量子隧穿引起的激發態的隧穿率。
  4. Using the graphic method to study two - dimensional square potential well

    用圖解法研究二維方勢阱
  5. However, it becomes independent on channel depth in strong inversion region, which is in accordance with numerical analysis

    結果進一步顯示，只考慮方形勢阱的量子力學結果，略高估計了閾電壓，且低估了電子密度。
  6. The factors affecting the in - plane thermal conductivity of thin films discussed include the mass of particles, the well depth, and the lattice constant, etc

    從粒子質量、勢阱深度、晶格常數的變化等方面討論了其對薄膜兩種材料的切向導熱系數的影響。
  7. From the exact expression of the field, we obtain a multipole polynomial expansion, and under the paraxial condition we furthermore obtain the approximate expression. the loffe trap, consisting of two coils with parallel currents and four straight conductors with currents in alternating directions, is one of the most important traps. we specially study the field structure of it by using both the exact expression and a multipole polynomial expansion that facilitates studies of classical or quantum orbits. if the region near the origin is of interest, we may obtain a simple expression of the field and this configuration may be called idealized loffe trap

    若只討論阱中的近原點區域時，阱中的磁場可以呈現出一種簡潔的形式，人們把它稱為理想ioffe阱。磁矩反平行於磁場的中性粒子在阱中與磁場發生相互作用，藉助相互作用勢，可以獲得粒子在阱中的經典運動方程。在一定的近似條件下，我們可以採用逐次近似的方法，使方程簡化，其中三個分量式中關于z的方程比較容易求解，而關于x 、 y的方程則演化為我們熟悉的馬丟方程的形式。
  8. Since founding, devote oneself to to build intelligence to change system and construction of computer management system all the time, hold to with " the client is a center " the market is politic, in the light of intelligence construction industry exists generally shrinkage fitting is cold used current situation, real time is advocated " constant power intelligence - - the choice that did not trouble " the client changes business concept, the service consciousness of the dominant position that develops group and technology adequately and high sense of responsibility, set out from the point of view that devises construction builder not only, should stand in the client to use convenient footing to think more at the same time, discover a problem, handle doubtful point and difficulty ; differ according to different client demand, offer the intelligent solution of the individuation of complete trap ; effective conformity the resource of enterprise of more than 20 it, make intelligent bldg. with all one ' s strength " the project that do not have care "

    創建以來，一直致力於建築智能化系統和計算機管理系統建設，堅持以「客戶為中心」的市場策略，針對智能建築行業普遍存在熱裝冷用的現狀，實時倡導「恆威智能? ?沒有煩惱的選擇」的客戶化企業理念，充分發揮團隊與技術的優勢以及高度責任感的服務意識，不僅從設計施工建設者的角度出發，同時更要站在客戶使用方便的立場思考，發現問題，處理疑點和難點；根據不同客戶不同需求，提供完整的陷阱的個性化的智能解決方案；並有效整合20餘家it企業的資源，全力打造智能建築業的「無憂工程」 。
  9. Abstract : we conduct a theoretical study on the properties of a bound polaron in a quantum well under an electric field using linear combination operator and unitary transformation methods, which are valid in the whole range of electron - lo phonon coupling. the changing relations between the ground - state energy of the bound polaron in the quantum well and the coulomb bound potential, the electric field strength, and the well width are derived. the numerical results show that the ground - state energy increases with the increase of the electric field strength and the coulomb bound potential and decreases as the well width increases

    文摘:採用線性組合算符及幺正變換方法研究了電場對量子阱弱耦合束縛極化子的性質的影響.推導出量子阱中束縛極化子的基態能量和庫侖束縛勢、電場和阱寬的變化關系.數值計算結果表明，基態能量因電場和庫侖束縛勢的不同而不同，隨電場和庫侖束縛勢的增大而增大，隨阱寬的增大而迅速減小
  10. In the present thesis, considering the impurity of the real material, we introduce the double - potential well and investigate that how the bottom fluctuation of the potential well influence the particle ' s chaos motion. my work includes the following points : 1

    本文考慮到實際的材料中的雜質問題，而引入了雙勢阱，考察勢阱底部的起伏對系統混沌運動的影響，主要進行了以下兩個方面的工作： 1
  11. The purpose of this paper is to calculate the distribution of d - centers " bound states along with the variation of the width of the quantum well. we want to understand the confine effect through our calculation that the system received from the quantum well

    我們在本文里研究的是方形量子阱里的d ~ -中心，計算了在量子阱中d ~ -中心的束縛態隨著阱寬的分佈，以期了解量子阱的勢壘對磁場里d ~ -中心的限製作用。
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