自發躍遷 的英文怎麼說
中文拼音 [zìfāyuèqiān]
自發躍遷
英文
spontaneous transition-
In the absence of an appreciable magnetic field, the ensemble of nebular electrons interacts with ions to emit weak continuous radiation by free-free and free-bound transitions.
在不存在可觀的磁場時，星雲中的電子系綜與離子相互作用可通過自由-自由和自由-束縛躍遷而發射弱連續輻射。An atom on an excited upper level can execute a downward transition not just spontaneously but also when photons of the radiation field surrounding the atomic interact with it.
處在較高的激發態上的原子不只可以自發地而且可以在它與原子系統周圍輻射場的光子相互作用時發生向下的躍遷。The study indicate that sral2o4 : tb3 + phosphor can be composed from 1250c to 1550c, the phosphor ' s luminance reduce and the afterglow time shorten along with the compounding temperature ; the better luminance and afterglow with the better crystalloid degree ; the luminescence of tb3 + ion in the sral2o4 is coming from the transition of 5d4 - 7fj ( j = 6, 5, . . . 0 ) ; the afterglow is because of the electron that seized in the trap released which integrate with the luminescence center
合成發光體亮度隨合成溫度的降低而逐漸降低，余輝時間逐漸縮短；當合成物具有較好的結晶度時，合成的發光粉不僅發光亮度高而且余輝時間長； tb ~ （ 3 + ）離子在sral _ 2o _ 4基質晶格中的發光主要來自於~ 5d _ 4 ~ 7f _ j （ j = 6 ， 5 ， … … 0 ）的躍遷；其餘輝是因為不斷有被陷阱所俘獲的電子釋放出來與發光中心復合。We obtain a new quark potential from the effective dilaton - gluon - coupling inspired by superstring theory, and by using this static potential, we explore the mechanism of quark confinement through calculations of the spin - average energy levels, the widths of the leptonic decays and radiative transitions for heavy quarkonium. the obtained results are compared with that of the cornell potenial
由規范場理論的超弦理論所激發的伸縮子一膠子有效藕合，給出了一個新的靜態夸克一反夸克勢，討論了此勢模型下重介子的自旋平均能譜、輕子衰變和輻射躍遷寬度，並與cdrn叭勢模型所得到的相應結果作了比較The former leads to couplings between all transitions with the same sign and to absorption reduction. the latter results in couplings, of which two terms have positive sign and with another two have negative sign
產生耦合的另一因素是激發態相干的自發轉移，它對其中兩個探測躍遷產生正號的耦合，對另兩個探測躍遷產生負號的耦合。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 ） 。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。The coupling originates from spontaneous emission of the probe transition and the spontaneous transfer of excited state coherence to ground state coherence
一個是探測躍遷的自發輻射，產生的耦合具有相同的符號，此時原子相干表現為抑制吸收。It expains the coordination mechanism and ways of the leap economic development patten by studying its economic mechanisms, and also reveals the dynamic mechanism and regional economic growth mechanism, put forward division evolution, market mechanism inducement, technological improvments, institutional change and policy supply are the direct impetus of the leap economic development patten, and economic interests is ultimate impetus. the mechanisms of market, institutional structure change, reward increasing and self - strenthen are the main operation mechanisms of the leap economic development patten
本文分析了跳躍式經濟發展模式的經濟機制，說明了協調機制及其路徑；還揭示了跳躍式經濟發展模式的動力機制和區域經濟增長機制，指出分工演進、市場機制誘導、技術進步、制度變遷和政策供給是跳躍式經濟發展的直接動力，經濟利益是最終動力；市場機制、制度結構變遷機制、報酬遞增機制和自增強機制是跳躍式經濟發展的主要運行機制。The photo - induced phase transition of the different light intensities, photo - energies and directions of the polarized light is investigated. it suggested that the photo excites the down spin eg electrons and destroys the spin order system of the thin films. the relation between the he - ne laser reflectivity of the thin film, applied current and resistance was analyzed by the optics theory of solid state physics
光子通過激發e _ g向下電子的躍遷，從而改變材料自旋極化方向，影響體系的輸運行為；首次研究了cmr薄膜的激光反射率和偏置電流的關系，並用固體光學理論對其定性分析，表明反射率的變化是由於電場引起材料的晶格畸變，改變了極化率，從而導致材料的折射率和反射率發生改變。( 6 ) blue upconversion was only observed in bulk lu2o3 : er, assigned to the 2h9 / 2 - 4i15 / 2 transition
6 .在體材料中，我們觀察到41onm和42onm的藍光發射，來自2h9二一4115二的躍遷。Based on the innovation theories, the article introduces into the theoretical study of the commercial banking innovation such economic and natural science theories as trading expenses, game theory, system transformation and the theory of evolution. from the standing point of optimizing resources distribution, the article argues and proves that the development of commercial banks are connected with and promoted by several subjective and objective factors, but the dominant factor in the substantial breakthrough of commercial banks lies in innovation
文章以創新理論為基點，將交易費用、博弈論、制度變遷，以及進化論等經濟和自然科學理論引入商業銀行創新的理論分析研究之中，並以優化資源配置為角度，論證了商業銀行發展是由多種主客觀因素維系和推動的，而引起商業銀行質的飛躍的主導因素是創新。The resonant dressed transition and the spontaneous decay of the other transition constitute a two - step pathway of population transfer from one dressed state to the other. as the consequence, the population is trapped in one dressed state
此時共振的相干躍遷與另一通道的自發輻射組成一個二步通道，將原子布居從一個修飾態經過輔助能級轉移到另一個修飾態，結果產生原子布居在一個修飾態上的捕獲。Glauber had initiated the investigation of the transition dynamics for spin system and developed the single - spin flipping critical dynamics. in recent years this theory has been improved to the single - spin transition dynamics which can be applied in the discrete spin system or the continuous spin system
Glauber開創自旋系統的臨界動力學研究工作，發展了一套單自旋翻轉理論，近年又被改進為可運用於離散系統和連續系統的單自旋躍遷臨界動力學，並在高斯模型中得到成功應用。分享友人