躍遷率 的英文怎麼說

中文拼音 [yuèqiānlǜ]
躍遷率 英文
transition rate
  • 躍 : 動詞（跳） leap; jump
  • 遷 : Ⅰ動詞1. （遷移） move 2. （轉變） change 3. （古時指調動官職） be appointed to a certain post Ⅱ名詞（姓氏） a surname
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. Energies and transition rates of low - lying excited states for beryllium

    鈹低激發態的能量和躍遷幾率
  2. In chapter two, the basic principles of rempi technique are introduced including the resonance enhanced effect, the selection rule, the mechanism of photoionization and photodissociation, rempi rate equation and the property of rydberg state

    第二章介紹了rempi技術的基本原理，包括多光子共振躍遷的選擇定則、電子態的光解離機理、描述rempi過程的速率方程和分子rydberg態的性質。
  3. The activation effect of zn2 + modification, including enhancement of emission intensity, slowing of luminescence decay and increasing of quantum yields, results from the formation of zns shell outside the nanoparticles, which is passivating the surface of nanoparticles, eliminating the surface quenching centers, so as to block the nonradiative transition pathways through these kind of quenching centers

    Zn ~ （ 2 + ）表面修飾在納米顆粒表面形成了zns殼層，鈍化了納米顆粒的表面，消除了表面猝滅中心，阻塞了通過表面猝滅中心進行無輻射躍遷的通道，從而使得發光強度增加，衰減變慢，量子效率提高。
  4. By using the multi - configuration dirac - fock ( mcdf ) method, the effects of relaxation and correlation on the transition energies and probabilities of electric - dipole allowed ( el ) resonance and intercombination transitions for 2p53s3 - 2p6 in neutral neon have been systematically studied firstly. and the results of the transition energies and probabilities ( lifetimes ) in length and velocity gauge have been presented. during the calculation, in order to consider the rearrangement effects of the bound - state density and some important correlations, the asfs of transition initial - and final - states were divided according to their angular - momentum and parity and calculated, and different number of csfs were included in the expansion of asfs

    本文利用多組態dirac - fork （ mcdf ）理論方法，通過對輻射躍遷初、末態電子波函數的獨立計算以及在原子態波函數的展開中考慮不同數量的組態波函數，系統地研究了弛豫和相關效應對中性ne原子2p ~ 53s ~ （ 1 . 3 ） p _ 1 ~ o - 2p ~ 6 ~ 1s _ 0電偶極共振和復合躍遷的能量以及躍遷幾率的影響，給出了長度和速度兩種不同規范下激發態的能量和輻射壽命；以中性ne原子的研究為基礎，進一步研究了類ne等電子系列離子（ z = 11 - 18 ）較低的激發組態2p ~ 53s和基組態2p ~ 6的能級結構以及各能級間的輻射躍遷特性。
  5. The " allowed " electric dipole ( el ) transitions will encounter strong competition from " forbidden " transitions, i. e. magnetic dipole ( ml ), electric quadruple ( e2 ) and other higher order transitions, the transitions rates for the forbidden decay scale with higher powers of z than those of el transitions, the effects of quantum electrodynamics ( qed ) also scale with higher power of z. accelerator - based beam - foil spectroscopy ( bfs ) is an important method for spectroscopic studies of highly ionized atoms

    在高離化態原子中，磁相互作用明顯增強， 「允許的」電偶極（ e1 ）躍遷將遭到來自磁偶極（ m1 ） 、電四極矩（ e2 ）和其它高次的「禁戒」躍遷的強烈競爭，禁戒躍遷幾率隨核電荷數z增加而迅速增加，此外量子電動力學效應也隨著z增加而增強。
  6. Mobile warp disruptor tech 2 blueprints invention run times and invention chance have been fixed

    機動躍遷抑阻設備二級科技藍圖使用次數和發明幾率問題都已修正。
  7. It is found that the existence of a maximum in the snr is the identifying characteristic of the sr phenomenon. " the main - unexpected - - novelty is the dependence of the effect on initial condition. " ( report of the phys. rev. e referee ) the coherence resonance ( cr ) and the stochastic resonance ( sr ) phenomenon in a globally coupled fitzhugh - nagumo neurons model are studied

    Ohyreve審稿人語）在對fhn神經模型的共振現象研究中，我們考慮一個存在耦合的多個神經細胞相互作用的神經網路，利用平均場理論和概率躍遷理論，得到了神經系統在無信號和有周期性信號的兩種倩況下的靜息電位。
  8. A typical model is the atomic barium in which the state 6s 1s0 corresponds to the ground state and the states 6s6p 1p1 and 6s6p 3p1 correspond to the excited states of strong and weak transition, respectively. the decay rates of the excited states are 47khz and 19mhz, respectively, and the ratio of them is 400

    原子ba是一個典型的系統（其中能級6s ~ 1s _ 0為基態， 6s6p ~ 1p _ 1和6s6p ~ 3p _ 1分別是上述強躍遷和弱躍遷的激發能級，兩個躍遷的自發衰減速率分別為47khz和19mhz ，兩者之比為400 ） 。
  9. For the sake of the practical application, the 1s to 2p transitional spectra of the group composed by na10 + and al12 + or another group composed by mg11 + and si13 + will be selected to use in the calculation about relation of relative intensity of spectra and electronic temperatures for making theoretical values approaching practice

    計算所得的能級躍遷波長、自發躍遷幾率a 、受激躍遷幾率gb和振子強度是對實驗所用光譜數據的補充。此外研究表明，利用z = 2的不同元素作示蹤元素進行溫度診斷是合理可行的。
  10. Time-reversal invariance predicts equality of transition probabilities for a reaction and its inverse.

    時間反演不變性預言，一個反應和它的逆反應，其躍遷幾率相等。
  11. In the case of uncorrelated noises, it is shown that only the fluctuation of degradation reaction rate can induce a switch process, and the mean first passage time ( mfpt ) between the high concentration state and low concentration one is decreased when the noise intensity of degradation reaction rate is increased

    可以看到源於蛋白質基本合成率的噪聲強度不能引起基因狀態的轉變（即基因的開關）而源於降解率噪聲強度則能夠實現這種開關。當進一步研究在降解率波動作用下基因從一個態躍遷到另一個態的平均首通時間（ mfpt ）時可以看到此時隨著這個波動強度的增加， mfpt是單調遞減的。
  12. Abstract : we have studied the polarization beats spectroscopy with phase - conjugation geometry in a cascade three - level system. it was found that the accuracy for the energy - level difference measurement is determined by the homogeneous linewidths of the optical transitions. under the condition for the occurrence of beating, the frequency difference of the beat between two independent light sources could exceed the laser linewidth. the measurement accuracy for laser absolute frequency could reach the same order of magnitude as the laser linewidth

    文摘:研究了級聯三能級系統中的相位共軛極化拍頻光譜術.發現其對能級差的測量精度決定於光學躍遷的均勻增寬.在符合拍頻條件時，兩獨立光源拍頻的頻差可以超出激光線寬，激光絕對頻率的測量精度可達到與激光線寬同一量級
  13. The strong probe field is coupled to the strong transition and creates two dressed states, the level spacing of which is far larger than the atomic decay rates

    強探測場與弱躍遷進行共振耦合產生兩個修飾態，修飾態間距遠大於原子衰減速率。
  14. This limited condition not only depends on the rabi frequencies of the coupling field and the signal field, but also depends on the detuning or the decay rate of the additional transition

    這個限制條件不但依賴禍合場和信號場拉比頻率，而且依賴于附加躍遷的失諧量或者衰減速率。
  15. In detail, one - photon detuning for large kerr nonlinearity and photon switching via eit should be far less than the product of the ratio of intensity of the coupling field to the intensity of the signal field, and the detuning or the decay rate of the additional transition

    具體來說，單光子失諧量的取值范圍應遠小於禍合場和信號場的強度比與微擾躍遷的失諧量或者衰減速率之積。
  16. Adopting the amendatory rate equation, the threshold of the micro - cavity has been studied and the conclusion is shown as following : if there is not non - radiation transition, the pump velocity just need to compensate the photon velocity escaped from the cavity, and the intensity of output light will direct ratio to the intensity of input light then we got a micro - cavity laser with no threshold

    採用修正的速率方程對微腔激光器的閾值進行研究，得到如下結論：在沒有無輻射躍遷時，激光器的泵浦速率只需恰好補償光子向腔外的逃逸速率，輸出光強隨著輸入泵浦光強性線增加，實現所謂的「無閾值」激光器。
  17. The main works and results we have accomplished are as follows : 1 ) red - detuned locking of cooling / trapping laser to the cycling transition of cesium cooling has been accomplished by means of a double - passed acoustic - optical frequency shifting system and the technique of saturated absorption spectroscopy. the short - term residual frequency jitter is less than 350khz ; 2 ) automatic controlling system by computer programs has been established for laser cooling and trapping and cavity qed experiment. the laser and magnetic fields can be controlled by the acoustic - optical modulator and the electronic - controlled logic gate respectively

    具體如下： 1 ）採用了往返兩次通過的聲光頻移系統結合飽和吸收光譜技術的實驗方案，實現了冷卻俘獲激光頻率相對于銫原子冷卻循環躍遷的負失諧鎖定，短期頻率穩定度約在350khz以內，並可方便地調節其負失諧量而無須對后續光路再作調整； 2 ）建立了一套基於計算機程序控制的、銫原子激光冷卻與俘獲實驗所需的時序控制系統。
  18. The dynamics is described by the glauber - type stochastic progress with the single - spin transition meehanism and disposed approximately by weighted average method in which we add a corresponding weight to each possible configuration. we obtain not only the exact analytical solutions of the time dependent magnetization and equal time spin - pair correlation functions, but also the analytical temperature dependent dynamical relaxation function

    通過採用加權平均的近似處理方法，也就是對各種可能出現的躍遷幾率賦一個相應的權重，我們不僅可以得到隨時間演化的磁化強度和等時對關聯的解析解，還得到了系統馳豫時間的溫度解析函數。
  19. Comparing of the ratio of 550nm emission intensity to 525nm in samples annealed at different temperature and times, the results obtained from a fit of the integrated intensity for these two emission indicated the change of radiative transition probability at different energy level are different

    通過比較不同退火溫度和時間樣品的兩者發光變化的不同，發現兩者的激發機理不同。通過比較不同樣品的525nm和550nm發射強度比值隨退火條件的變化以及這兩個發光的積分強度的變溫擬合結果說明退火對不同能級的輻射躍遷幾率的影響不同。
  20. First, it is shown that the slope of the effective potential increase or decrease faster than the current. all of these facts indicate that the current and the slope are not simply linear relevant. second, the results show that the current and the slope of the effective potential change simultaneously when the temperature is in a certain range

    計算結果表明： （ 1 ）躍遷率很小時幾率流和有效勢的傾斜隨著躍遷率的增加而增加，當躍遷率達到一定值40左右時，兩者幾乎同時達到最大值，躍遷率大於某一定值時，兩者隨躍遷率的增加又同時減小。
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