躍遷態 的英文怎麼說
中文拼音 [yuèqiāntài]
躍遷態
英文
activated state-
Using the multi - configuration dirac - fock method ( mcdf ), we studied the characteristic of the decay processes of the 4d core excited states of csiv, the low - lying excitation structure of super - heavy element bohrium ( z = 107 ) and the x - ray spectra of the 3d - 4f transitions of highly charged xenon ions in details in this work, by including the electron correlation and the relaxation effects systematically
本論文運用mcdf方法,通過系統考慮電子相關效應和馳豫效應,分別研究了cs離子的4d內殼層激發態衰變動力學特性,超重元素bh ( z = 107 )的低激發態結構以及高離化態氙離子的3d - 4f躍遷產生的x射線譜的結構等問題。Energies and transition rates of low - lying excited states for beryllium
鈹低激發態的能量和躍遷幾率Up to now, some people represent certain - position transition model in which molecular motors transition are supposed to occur at some fixed positions. the molecular motors are described by m internal states and undergo transitions at k spatial locations within the period of the molecular force potentials
在現有的理論中,有人提出馬達在不同狀態之間躍遷發生在某些固定的位置,這就是所謂的定點躍遷理論,這種理論的假定過強,在物理上難以被人們接受。In this model, ion conduction involves transitions of three states, with one three - ion state and two two - ion states in the selectivity filter respectively. in equilibrium, the well - known nernst equation is deduced
在這一模型中,離子通道的選擇性過濾器主要處於三個態,一個三離子態和兩個兩離子態,轉導過程用這三個態之間的相互躍遷來描述。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。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 research for the binding energy of d - centers is important to the transition energy and the optical and the magneto - optical absorption of shallow center d - there have been some theoretical and experimental investigations [ 1, 4, 5, 6, 7, 8 ] about three - dimensional and two - dimensional d - centers in magnetic field, but have no works discussed the d ~ centers in quantum wells in the strong magnetic field limited
研究d ~ -中心各個態的束縛能,對于研究d ~ -中心各能級之間的躍遷和d ~ -中心的光學和磁光吸收、新型器件的研製與開發都有很大的意義。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。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。Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization, and considered the cases that the pump beams have either narrowband or broadband linewidth. we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions. that is to say, this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state
文摘:研究了四能級系統中基於五階極化的拍頻效應,考慮了抽運光束為窄帶線寬或寬帶線寬的情形.發現其對能級分裂的測量精度決定於光學躍遷的均勻增寬.也就是說,這種技術在測量與基態是偶極禁戒躍遷的兩激發態之間的能級分裂時,可得到消除多普勒增寬的精度Based on this situation, in this paper, a more actual dynamic - chemical coupling model than two - state model, a periodic four - state kinetic hopping model, is established, and analyzed by the master equation method
基於這種情況,本文建立了一維周期性四態隨機躍遷模型,並利用主方程方法進行了研究。In the third part, a more actual dynamic - chemical coupling model than two - state model, a dimensional v " j : ) t t periodic four - state kinetic hopping model, is established. the results are summarized as follows. 1
第三部分根據分子馬達實際的力學化學耦合過程,建立起比兩態模型更接近實際的模型?一維周期性四態隨機躍遷模型。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 investigation of the exciton - phonon coupling of nn3 center offers a direct proof that all the phonon replicas are the phonon sidebands governed by the huang - rhys " multiphonon optical transition theory, and clarifies the speculations that the replicas associated with optical phonons are independent bound states of exciton - phonon complexes or due to other alternative mechanisms
對其變溫pl譜的研究還發現,在nn :的聲子伴線區域呈現出的異于多聲子光躍遷理論的現象,說明在該區域可能存在著其它的n雜質態。The fluorescence intensity of pb became weak when the crystal phase began to form in tha the lattice vibration absorbed the energy induced by the fluorescent transition
隨著體系中晶態的生成, pb離子進入晶格中,由於晶格振動所產生的聲子吸收了躍遷回落產生的發光能量, pb離子的熒光強度明顯下降。The weak control field is coupled with the weak transition, which is separated into two transitions from an auxiliary into either of the two dressed states in the dressed states representation
弱控制場與裸原子強躍遷進行耦合,在修飾態表象中,控制躍遷分裂為從輔助能級到兩個修飾態的兩個躍遷。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 ) 。The coincidence data were analyzed with the radware software package. through identifying the transitions in the double - gated spectrum by program of xmlev, we have built the level scheme with high spin states for 113ru for the first time
利用三維數據分析的xmlev程序,對躍遷開雙門得到的門譜進行反復的對比研究,識別級聯躍遷,首次建立了豐中子核113ru的高自旋態能級綱圖。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。分享友人