查询词典 Stark

The basic characteristics of the Stark map of Ba atom are as follows: in weak-electric field, the Rydberg states with small angular momentum numbers show a quadratic Stark effect, and those with large angular momentum numbers no longer degenerate and show a linear Stark effect, which is hydrogenic.

研究结果表明：在弱电场下，低角动量态由于具有较大的量子亏损而随着电场强度显示出二次Stark效应；而高角动量态由于量子亏损为零，并在电场下解除简并，随着电场强度的增加而呈现线性Stark分裂，具有显著的类氢性质。

The time evolution of two-atom entanglement displays periodic entanglement and disentanglement when the coupling coefficient of Stark effect is much smaller, while the disentanglement will disappear when the coupling coefficient of Stark effect is much larger.

当 Stark 效应耦合系数很小时，两个原子间纠缠度的时间演化特性呈现周期性纠缠和退纠缠现象；当 Stark 效应耦合系数很大时，原子间退纠缠现象消失，即原子始终保持在纠缠状态。

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.

本文首先综述了关于定态微扰论基本理论的研究现状，在此基础上利用定态微扰论对某些物理问题，主要是对氢原子问题展开了研究，计算了氢原子n=4能级的斯塔克效应，并利用抛物线坐标法求解了三维氢原子的斯塔克效应，给出了氢原子斯塔克效应中微扰矩阵元的普遍公式。

It is shown that in the presence of AC Stark shift, the atom inversion in non degenerate Raman process has a beatiful periodicity, and the frequency and amplitude of the Rabi oscillation are affected by AC Stark shift.

结果发现，交流斯塔克位移的存在使得非简并拉曼过程中原子反转的崩溃与再生现象呈现较好的周期性，并且拉比振荡的频率和振幅均受交流斯塔克位移的影响。

According to the degenerate perturbation theory and the secular equation of n=1,2,3 energy level,Stark s effect of n=4 energy level for hydrogen atom is studied and calculated and the stark s effect for hydrogen atom atth energy level have also been deduced.

根据简并情况下的微扰理论和n=1，2，3对应能级的久期方程，推出n=4状态下氢原子的斯塔克效应中的久期方程，并算出该状态下氢原子在电场中的能级分裂情况。

Chapter Ⅱ reviews the general theory of Stark effect from our point of view. We describe three kinds of theoretical approaches about the treatment of ac Stark effect, which are time-dependent perturbation theory in semiclassical argument; Rabi methods in the semiclassical theory; dressedstate approach---quantum treatment of the light field. We also compare and discuss their scope of application.

第二章从我们自己的观点出发，总结了理论研究ac Stark效应的三种不同的方法：半经典的与时间有关的微扰方法；半经典的Rabi方法；对光场进行量子化处理的Dress态理论方法，比较并讨论了这三种方法各自的适用范围。

Back in the U.S. he announces his company will cease making weapons and he begins work on an updated armored suit only to find that Obadiah Stane, his second in command at Stark industries has been selling Stark weapons to the insurgents.

回到美国后，他立即宣布他的公司即将停止生产武器，同时开始着手完善自己的武装盔甲，但他却惊奇的发现他的公司 Stark 工业公司的副手 Obadiah Stane 一直以来向俘虏他的叛军秘密销售武器。

Seeking to stop this, his business partner, Obadiah Stane, seeks to remove Tony Stark as CEO of the company in order to avoid further losses. In the meantime, Stark develops an upgrade of the suit he built while in captivity, complete with advanced weapon and flying capabilities.

他和恐怖分子合作多时专干非法的军火买卖，正当对方对这次事件的不满、他就以供应新式武器为赔礼，而且对方"礼尚往来"把"TonyStark"最初的装甲设计图给了他。

I have come to the world,stark naked;am I to goback,in a blink,in the same stark nakedness?

我赤裸裸来到这世界，转眼间也将赤裸裸的回去罢？

I have come to the world, stark naked; am I to goback, in a blink, in the same stark nakedness?

我赤裸裸来到这世界，转眼间也将赤裸裸地回去罢？

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48