perturbative 中文意思是什麼

perturbative 解釋
擾亂性
  1. In quantum chromodynamics ( qcd ), vacuum is not trivial, that is, vacuum carry quantum numbers. such a behavior is embodied by non - perturbative con - densates of quarks and gluons. since hadrons are excitations with respect to the vacuum, hadronic properties are ultimately related to properties of the vacuum. based on the vacuum structure, some hadron properties have been described well. in the low energy region, qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement, which are closely related to the vacuum characteristics of qcd. much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics, and the quark condensates give an expression to chiral symmetry spontaneous breaking. according to goldstone ' s theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken. there are two ways : inear and non - linear methods to carry out this constraint. in our paper, we will use the non - linear method

    大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用於su （ 3 ）模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。
  2. The former is within perturbative quantum chromodynamics domain and the latter is within non - perturbative quantum chromodynamics domain

    前者屬于微擾量子色動力學范疇，後者屬于非微擾量子色動力學范疇。
  3. The huge energy - momentum of particles can be transformed into thermal energy by accelerator experiment at high energy to study perturbative vacuum of quantum chromodynamics and determine the signal of quark - gluon plasma

    在實驗上，人們通過相對論性重離子碰撞實驗把巨大的動能轉化為熱能，來研究量子色動力學的微擾真空及其所預言的夸克?膠子等離子體。
  4. Wei - shu hou et. al used the potential model by cornwall and soni, gained the gluon - gluon potential. taking advantage of the potential and perturbative mothed, the spectrum of two - gluon glueballs are calculated with principle quantum number below n = 3. it is found that the theoretical results can correspond to the experimental data, are sometimes even better than the lattice calculations

    Wei - shuhou等人應用cornwall和soni的勢模型，在組分膠子圖象下得到了雙膠子膠球的膠子?膠子勢，這樣就可以解相應的薛定諤方程，計算雙膠子膠球的質量。
  5. Because of the non - abelian feature of strong interaction theory, it can not describe non - perturbative effect, so phenomenological models provide the main study method for relativistic nucleon - nucleon collisions

    由於強相互作用理論的非abelian性，它不能定量描述非微擾效）許，所以唯象理論模型是目前研究相對論性核一核碰撞的主要斤法之。
  6. As is well known, in high energy collisions the hadromzation of partons, being a soft process, can not be analyzed using perturbative qcd ( pqcd )

    在高能碰撞多粒子產生中，部分子的強子化是一個軟過程，不能用微擾qcd來進行研究
  7. Effective dielectric response of ellipsoid composites in which the dielectric function of the grains have the form of ( the equation is abbreviated ) ) embedded in a host medium is investigated in dilute limit based on perturbative expansion method, and general expressions for the effective linear dielectric function and ( - 1 ) - order nonlinear susceptibility of the two - phase system are derived in this paper

    摘要利用微擾展開法討論了任意階弱非線性橢球顆粒復合體系（假定顆粒組分的介電函數隨場變化，表示為（方程式略） ）的有效介電響應，導出了稀釋極限下兩組分橢球顆粒體系的有效線性和有效（ + 1 ）次非線性系數的一般表示式。
  8. A receiving surface of perturbative photon fluxes in interaction between gravitational waves and em fields

    引力波和電磁場作用中擾動光子流的接收面
  9. A perturbative shallow water tomography scheme based on the modal wave number inversion technique is considered in this paper. and it could estimate the bottom sound speed and density

    論文提出了一種基於簡正波波數的擾動反演淺海聲層析方法，該方法能夠反演海底聲速和密度。
  10. The result of a discussion about the statistical distribution shows there are different distribution forms between the data errors and estimated parameters in non - linearity inversion. the precision of estimated bottom sound speed is well than the estimated bottom density. although there is a same data errors distribution in perturbative inversion, the distribution of each inverted eof coefficient is different

    統計誤差分佈的討論結果顯示：在非線性反演方法中，數據空間誤差分佈與參數空間誤差分佈不相同，這種匹配方法估計的海底聲速的準確性好於對密度估計的準確性；在擾動反演演算法中，相同的數據誤差分佈條件下，反演的eof各項系數誤差分佈不同。
  11. The main assumption of qcd sum rule is that, at the transition from perturbative to non - perturbative regime, the confinement effect can be described as the power corrections in the ope

    Qcd求和規則從關聯函數出發，假設在從微擾向非微擾區域轉移過程中，禁閉效應可以用ope級數修正表徵。
  12. Based on the basic equation, the non - paraxial correction of pulsed beam is obtained by the spectrum analysis technic and the perturbative technic respectively. the result from the above mentioned two technics are compared to each other

    基於上述方程，分別用角譜分析法和微擾法得到了脈沖光束的非傍軸修正，並對這兩種方法所得結果進行了比較。
  13. A symbol amplitude of a single - user in a multi - user system is approximated over the window of the frame and a perturbative correction value is calculated based upon a correlation or decorrelation matrix, which is determined by the delay spread of the signals

    在多個使用者系統內的單一使用者的符號振幅系以該畫面的整個視窗來估算，並且系根據一個相關或解相關矩陣來估算，而該矩陣系由訊號的延遲分散來決定。
  14. Therefore j / v is the border guard of perturbative quark and gluon and non - perturbative hadron. j / v production can be divided into two phases : cc pairs are produced from initial short - range parton scattering in nucleus - nucleus collision, then the produced cc pairs proceed to evolving into physical bound state

    基於對強子?強子碰撞中j產生的研究，目前人們認為j的產生可分成兩個階段：入射強子和靶強子先通過部分子過程產生cc對，然後cc對再演化為物理的j束縛態。
  15. In this paper, the current states of research about the basic theory of stationary state perturbation method are firstly reviewed, on base of them, and studied some physics issues mainly about hydrogen atom. the stark effect of the energy level ( n = 4 ) of hydrogen atom is calculated and the stark effect of three dimensional hydrogen atom is discussed by the use of the parabolic coordinates, then the perturbative matrix elements for each energy level are given

    本文首先綜述了關于定態微擾論基本理論的研究現狀，在此基礎上利用定態微擾論對某些物理問題，主要是對氫原子問題展開了研究，計算了氫原子n = 4能級的斯塔克效應，並利用拋物線坐標法求解了三維氫原子的斯塔克效應，給出了氫原子斯塔克效應中微擾矩陣元的普遍公式。
  16. A new interface - perturbation model of solid - state displacement reactions ternary system is suggested and the interface - stability criterion is derived in the form of chemical potential if the chemical potential of rate - control - element at frontier of tiny perturbative zone goes up less than 20. 7 %, linear interface will grow up stablly and form layered structure ; if it goes up more than 20. 7 %, linear interface is not stable and will form aggregate structure

    通過建立界面擾動模型，推導了三元固態置換反應系界面穩定性的化學勢梯度判據。結果表明：如果擾動微區前沿速率控制元素的化學勢梯度升高小於20 . 7 ，平面界面穩定長大，將形成層狀結構；若大於20 . 7 ，平面界面不穩定長大，將形成束集型結構。
  17. A wave function for laser dressed atom is derived as a perturbative solution of the time - dependent schr ? dinger equation in the velocity gauge

    摘要作為含時薛定諤方程的微擾近似解，在速度規范下給出了激光場中綴飾原子的一個波函數。
  18. In the multiple - layered test for injection wells, a lot of pressure falloff curves in the single layers are hard to show a radial flow straight line due to the perturbative phenomena of multilayer reservoir, low permeability or short test time

    摘要在注水井分層測試中，由於油藏的低滲透性或者測試時間相對較短等原因，各層的壓力恢復曲線難以出現徑向流直線段。
  19. We consider a neutral particle with magnetic moment antiparallel to the field. with the interaction potential energy between the magnetic moment of the particle and the magnetic field, we obtain the classical motion equation of the neutral particles in the loffe trap. in some limit conditions, by using the perturbative method, the equations may take on concise forms. of which the two equations about x and y are mathieu equations. if we properly set the parameters and have the condition a > > q > 0, we can solve the mathieu equation with the traditional wkbj method. as a new attemptation, with fourier series expansion we solve the mathieu equation and obtain the classical motion law of the neutral particles

    若阱的參數設置使得條件> > q 0成立時，我們可以利用傳統的wkbj方法近似求解馬丟方程。作為一種新的嘗試，本文還採用傅立葉級數展開的辦法來對馬丟方程進行求解，從而得到中性粒子在阱中的經典運動規律。在研究ioffe阱對中性粒子的囚禁問題時，實際上我們更感興趣的是馬丟方程的周期解，而要想獲得這種周期解，和q必須滿足一定的關系，亦即必須選擇阱的特定的參數和粒子的特定初始條件，對這一問題我們進行了嘗試性的研究。
  20. Geometry and quantum field theory, designed for mathematicians, is a rigorous introduction to perturbative quantum field theory, using the language of functional integrals

    幾何和量子場論課程是用泛函積分的語言對微擾量子場論的嚴謹的介紹，主要針對數學家設計。
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