量子态

With the development of quantum chemistry theory and computational technique, the excited state of molecules: a high-energy unsteady electronic state, has been investigated using accurate electronic structure theory methods.

随着量子化学理论方法和计算机技术的发展，量子理论模型已成为一种研究分子的高能、不稳定电子态－激发态的最有效手段。

By making use of the quantum canonic ensemble theory,the quantum fluctuations of a mesoscopic RLC circuit in the mixed state have been studied.

利用量子正则系综理论研究了介观RLC电路在混合态下的量子涨落。

The quantum size effect of a very small thickness circular disclike GaAs quantum dot on exciton's ground state binding energy and the electron-hole distance are studied by using calculus of variations.

利用变分法研究了有很小厚度圆盘形GaAs量子点模型中激子的基态结合能，及电子-空穴间距随量子点尺寸变化的规律。

In chapter 6,the applications of entangled states in quantum secret sharing is discussed.

第六章主要讨论了量子纠缠态在量子秘密共享方面的应用。

Relation of hydrogenic impurity binding energy,effective Bohr a _ and virial theorem value and quantum dots size and studied variationally by using variational wave functions of containing two parameters.

选用含有2个变分参数的波函数，利用变分法计算了无限深球形量子点中施主杂质态的束缚能、杂质有效玻尔半径、维里定理值等随量子点尺度的变化关系。

In Chapter 2, introduces elementary theory and quantum chemistry computation methods, which mainly contained the reaction surface, crossing rules of the potential energy surfaces, tradition transition state theory, spin-orbit coupling mechanism and rules for intersystem crossing.

第二章简要地介绍了量子化学计算方法，主要包括量子化学基本理论和反应势能面、势能面相交与不相交规则、过渡态理论和系间窜越的选择规则。

We investigate time evolution of the fidelities for an interacting system between a cascade three level atom and a binomial state field.

本文研究了二项式态光场与级联三能级厚子相互作用系统中原子，光场和整个系统的量子信息保真度的时间演化规律，讨论了光场参数和失谐量对量子信息保真度的影响。

Amplitude decoherence is much more sophisticated than phase decoherence. To describe its properties, we develop a method called the short-time perturbative expansions for the state fidelities. This approach is proven to be a useful tool for studying open quantum systems.

振幅消相干要比相位消相干复杂得多，为了完整地描述振幅消相干的特性，我们发展了一种新的处理量子开放系统的方法，即态的保真度的短时微扰展开法，该方法被证明是研究复杂量子开放系统的一个有力的工具。

It is shown that the two two-level atoms initially situated in different coherent superposition states, quantum information may lose fidelities partly or may not lose fidelities during evolution in transmit process.

结果表明：两个原子初始处于不同量子叠加态，量子信息在传输过程中可能发生部分失真，也可能不失真。

Quantum entanglement and quantum superdense coding wererealized by NMR techniques.

利用核磁共振技术，实现两量子位的量子纠缠态及量子密集编码的实验演示。

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％。