time-evolution 中文意思是什麼

time-evolution 解釋
時間演變
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • evolution : n 1 發展，發育；開展。2 （氣體等的）放出；散出，放出物，散出物。3 發生；演變；【生物學】演化，進...
  1. A common problem in theoretical chemistry, condensed matter physics and materials science is the calculation of the time evolution of an atomic scale system where, for example, chemical reactions and / or diffusion occur

    一個在理論化學方面的很普通的問題，涉及到凝聚體物理學、材料科學，例如：化學反應和擴散發生的時間。
  2. We examin e the generation of bell state in bose - einstein condensates of two interacting species trapped in a double - well configuration analytically and the density of probability for finding the entangled bell state is given. we find that the oscillation amplitude of the probability of density for finding the entangled bell state becomes greater as the ratio of the interspecies interaction strength and the tunneling rate increases, moreover the self - interaction strength of the component a ( b ) has no effect on it. also we use the time - dependent su ( 2 ) gauge transformation to diagonalize the hamilton operator, obtain the berry phase and analytically the time - evolution operator

    此外我們還研究了在雙阱玻色-愛因斯坦凝聚中糾纏態的演化，研究發現隨著組分間相互作用和隨穿率的比值的增加系統演化到bell態的概率變大，而且組分自身內在的相互作用對形成bell態的幾率沒有影響；並且用含時su （ 2 ）規范變換對角化哈密頓量得到了系統的berry位相和時間演化算符，並研究了量子隨穿過程。
  3. According to floquet theorem, the relations between the dyna mical localization and quasi - energy bands are pointed out with both numerical and analytical calculations on quasi - energy bands and their corresponding time evolution

    應用floquet定理，從解析與數值計算兩個角度計算了該模型的準能譜與時間演化，指出動力學局域化與準能譜的塌縮的對應關系。
  4. We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase

    研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律，並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時，原子對探測場和驅動場色散的響應不再為零，雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益（吸收）的時間演化規律明顯改變;隨著失諧的增大，探測場增益（吸收） 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長，振幅和穩定值變大
  5. In this scheme, the unitary of time evolution operators makes sure that the wavefunction is normalized in time - space propagation

    在這種方案中，時間演化算符的幺正性保證了波函數在傳播過程中的規范性。
  6. The time evolution of wave functions is deterministic in the sense that, given a wavefunction at an initial time, it makes a definite prediction of what the wavefunction will be at any later time

    感覺上波函數的時間演化是確定的，在起始時間給出一個波函數，在以後的時間里就可以確定預報波函數。
  7. We also study the time evolution of the linear entropies of the atom, the field and the total system

    我們還討論了原子、場和系統的線性熵隨時間的演化情況。
  8. ( 3 ) the symplectic integrator method is applied to time evolution of the scalar wave equation

    （ 3 ）將辛演算法運用到標量波動方程的時域模擬中。
  9. With time - evolution - operator, it is proved that the population of upper level is in circumstance of cyclic oscillation by laser pulses pair of gaussian line - shape in a homogeneous broadening two - level system. the oscillatory time oxide is the delay time between the laser pulse pairs and the oscillatory frequency equals the one of transition between the lower and upper level

    引入時間演化算符，證明均勻增寬二能級體系在飛秒激光脈沖對作用下上能級激發態布居是周期性變化的，它以飛秒脈沖對之間的延時為時間軸，以該原子能級之間的躍遷頻率為振蕩頻率
  10. By studying the late - time evolution of massive scalar fields in the charged black hole - global monopole background, we find that the asymptotic decay of these fields is dominated by an oscillatory inverse power - law tail, and the decay is faster in the case

    我們通過對在單極子荷電黑洞背景中有質量標量場後期演化的研究，發現振蕩反冪函數的衰減方式支配了有質量標量場的後期衰減。
  11. Using lewis - riesenfeld theory, we obtain exact solutions of the time - dependent system, then we recover both n - pulse method based on time - evolution operator of the system and stirap method in terms of instantaneous eigenstates with the help of time - dependent gauge transformation

    利用含時規范變換理論得到系統的精確解，我們用時間演化算符同時得到文獻中分別採用-位相法和stirap （受激拉曼散射）方法得到的結果，因而更具有普遍性。
  12. On the contrary, the fractal in space - time evolution in e + e - collisions turns out to be self - similar, which is due to the isotropy of qcd dynamics

    另一方面，在e ~ + e ~ -對撞所產生的末態粒子階乘矩的分佈中呈現出各向同性，表明時空演化中的分形結構為自相似。
  13. , the fractal in space - time evolution in high energy h - h collisions is self - affine, which may trace back to the high anisotropy of phase space of multiparticle final states in these collisions

    高能強子-強子碰撞多粒子末態的高度各向異性使得時空演化中的分形結構表現為自仿射。
  14. With the time - evolution operator obtained by means of su ( 2 ) spin coherent states we are able to derive analytic time - evolution of spin probability - current between the two quantum dots for various initial states

    我們利用su （ 2 ）自旋相干態獲得包括庫侖相互作用hubbard模型的時間演化算符，得到解析的含時自旋流。
  15. Using the formulized approach to the su ( 1, 1 ) h ( 4 ) time - dependent system, which is derived from the combination of the formulation of the time - dependent bogoliubov transformation and the evolution equation of the system, we obtain the time evolution operator, state function and heisenberg uncertainty relation of the parametric oscillator with cavity losses under the weak coupling approximation. we also discuss the squeezing property of the system

    本文利用含時波戈留波夫變換與時間演化方程相結合得到的求解su （ 1 ， 1 ） ? h （ 4 ）量子系統的時間演化算符和演化態的普遍公式，我們導出了帶腔損耗的參數振子在弱耦合近似下的演化算符，態函數和不確定乘積，並討論了系統的壓縮特性。
  16. Finally, by means of time evolution operator and numerical calculations, the time evolution of the atomic population, the atomic dipole squeezing, the time evolution of the squeezing and coherence properties of the light in the system of the two identical two - level entangled atoms interacting with the coherent optical field have been studied

    論文的第三部分工作是採用時間演化算符和數值計算方法，研究了兩全同二能級糾纏原子與相干態光場相互作用過程中，原子布居、原子偶極壓縮、光場的二階相干和光場壓縮性質的時間演化特性。
  17. The evolution of the local spin in a molecular magnet peg and [ mn4 ] 2 interacting with an injected electron is studied, we find that the variation in the magnetization of fe8, [ mn4 ] 2 and the electron spin crucially depends on the strength of the exchange interaction. we calculate the time evolution of the entanglement between the injected electron and fe8, [ mn4 ] 2

    在磁性分子fe _ 8和[ mn4 ] _ 2的自旋動力學和糾纏演化的研究中，我們發現糾纏度隨著時間而改變；自旋和糾纏度的振動幅度強烈依靠于交換作用，結果提供了用分子磁體和極化電子進行編碼和讀出數據的可能性。
  18. Taking cgle for example, we first introduce spatial grid filter technique to control the system turbulence states and obtain multiform regular spatial distributions, both with the time evolution keeping to be chaos or changing to be period. and we also control stc in cgle by using delay feedback method

    以復金茲伯格?朗道方程為例，首次提出網格濾波方法，討論濾波技術對這一系統時空混沌的控制，對規則濾波無法得到滿意控制的復金茲伯格?朗道方程中的缺陷湍流和位相湍流有效地進行了控制，得到了豐富的時空斑圖結構。
  19. The qmd model is used to study the time evolution of systems and give microscopic information

    論文中首先對相變與臨界現象的歷史及其基礎知識進行了回顧。
  20. Preparation of multi - type - three - atom - entangled states via the time - evolution of jaynes - cummings with large detuning and detection of cavity - fields

    模的時間演化和對腔場的探測制備多種形式的三原子糾纏態
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