量子态

To overcome the shortcoming brought from decoherence, one can concentrate the entanglement states.

为了更好的进行量子信息处理，我们对这些纠缠态进行浓缩。

This method requires only the dimensions of systems and the expansion coefficient of density matrix which can be easily got, and the computation is easy, so it has its application value.

此判据仅依赖于系统的维数和密度矩阵的展开系数，而这些数据是易于求得的，使得量子纠缠态的判断简单易行且易于操作，在实际运用中具有理论价值。

Considers the problem of deleting of bipartite orthogonal maximal entanglement states and deleting of quantum channel,also deriver some necessary and sufficient conditions when they can be deleted.

考虑在局域操作下，两体最大正交纠缠态和量子信道的局域删除问题，得到了它们可以实现局域删除的充要条件。

The dark lines are consequences of destructive interference of the transitions and singularities of the radiation field's DOS.

暗线是由于辐射场态密度的奇点及跃迁时量子相消的结果。

The ground state nuclear wave function of deuteron is expanded in terms of the tr...

氘核基态波函数用对应主量子数 0≤N≤ 1 0的平移不变壳模型基函数来展开。

In this dissertation, we study the rotational states of adsorbed diatomic molecules and some physical properties of quantum dots.

在本论文中，我们研究吸附双原子分子的转动能态和量子点的物理性质。

By recalling the ground state and low-dying excited states of Bethe equation and corresponding configuration of quantum numbers, we find their dispersion relations.

通过研究SU(2) Bethe 方程的基态和两种低能激发态的性质及相应的量子数选择，我们给出了其相应的色散关系。

The effective mass approximation model can very well describe the behaviors of the excitons confined in the dots.

有效质量近似模型可以很好地描述激子的基态能量的量子尺寸效应。

In this thesis, we focus on the theory for the interaction of molecular dipole moment with external electric field and use the numerical simulation to investigate the rotational state-selection of polar molecules in a hexapole electric field and the laser-field role of alignment or orientation for molecules based on semi-classical treatment, the detail is the numerical calculation for a quantum mechanical treatment of molecules and their interaction with the external field and a classical electrodynamical treatment for static electric field.

本文研究是在描述分子偶极矩（永久偶极矩或诱导偶极矩）和外电场相互作用的基础上，我们建立了对分子态选择和角动量取向、准直研究的半经典理论框架（即分子体系状态、能量及与外场相互作用使用量子理论描述，分子的运动轨迹使用经典电动力学描述），并利用数值计算方法对静电场和随时间变化电场作用下分子的转动态选择、取向和准直过程进行了研究。

Using the extended relativistic multi-configuration Dirac-Fock theory and the general-purpose relativistic atomic structure program 2(GRASP2) with quantum electrodynamical effect and breit correction, we have calculated the energy level structures, transition wavelengths, transition probabilities, oscillator strengths, energy level lifetimes, level widths and ionic average lifetimes of As-like Au~(46+), Ge-like Au~(47+) and Fe-like Au~(53+).

根据扩展的全相对论多组态Dirac-Foek理论，采用"多功能相对论原子结构程序GRASP~2(General-Purpose Relativistic Atomic Structure Program 2，1992)"，考虑量子电动力学效应和Breit修正，计算了激光金等离子体中类砷金Au~(46+)，类锗金Au~(47+)和类铁金Au~(53+)的能级结构、跃迁波长、跃迁几率、振子强度、能级寿命、能级宽度和离子平均寿命。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。