查询词典 quantum theory

The combination of quantum mechanics and classical information theory yields thenew subject of quantum information theory.

量子信息科学是物理科学与信息科学交叉融合产生的新兴学科领域。

Through the Radon transformation of the normally ordered Wigner operator we introduce two mutually conjugate intermediate coordinate- momentum representations. Based on them we construct the appropriate quantum phase space theory which includes the new Wigner operator adapting to this space and construct the appropriate generalized Fredholm operator equation and then find its solution. We then deriving the Hermite polynomials operator identities by applying the Fredholm equation. We also reveal the connection between the generalized Wigner operator and the 2-dimension normal distribution in statistics, which is useful to study the quantum tomogram. As the application of the entanglement Husimi operator theory we calculate the Wigner function and the Husimi function of the one- and two-mode combination squeezed state , study their characters through drawing the three-dimensional graphics.

由正规序Wigner算符的拉登变换引入了两个互为共轭的中介坐标-动量表象，在此基础上我们建立了相应的量子相空间理论，其中包括引入适合该空间的新的Wigner算符；并在该表象的基础上，建立了广义Fredholm算符方程，求出了它的解，并运用该方程导出有关厄米多项式的算符公式；揭示广义Wigner算符与统计学中的随机变量的二维正态分布形式上的相似，这对于研究量子态的tomogram(是英文Tomography的派生词)有用。

Contents: A Brief Review of Elementary Quantum Chemistry; An Introduction to Electronic Structure Theory; The Born-Oppenheimer Approximation; Time Evolution of Wavefunctions; Angular Momentum Summary; The Unitary Group Form of the Hamiltonian; Introduction to Hartree-Fock Theory; Permutational Symmetries of Integrals; Notes on Excited Electronic States; The Quantum Harmonic Oscillator; Assigning Symmetries of Vibrational Modes; Notes on Elementary Linear Algebra

内容： 初等量子化学的简评；电子结构理论的介绍；天生奥本海默的接近； Wavefunctions的时间演化；角动量摘要； Hamiltonian的单位的组形式；哈特里-Fock 理论的介绍；积分的Permutational对称性；在令人激动的电子国家上注明；这台量谐波振荡器；分配振动的方式的对称性；在初等线性代数上注明

Quantum information is a new interdisciplinary subject that is a combination of quantum mechanics and classic information science. Quantum information, which is based on the basic theory of state superposition principle of quantum mechanics, mainly researches information management.

量子信息学是经典信息论与量子力学相结合的新兴交叉学科，是以量子力学的态叠加原理为基础，研究信息处理的一门新兴前沿科学。

Geometry and Quantum Field Theory, designed for mathematicians, is a rigorous introduction to perturbative quantum field theory, using the language of functional integrals.

几何和量子场论课程是用泛函积分的语言对微扰量子场论的严谨的介绍，主要针对数学家设计。

Quantum logic has a long history, and there were many results of quantum logic.Effect algebra was introduced before about ten years. It describes the unsharp quantum measurement, and plays an important role in quantum logic theory.

本文研究了近十年来发展起来的用于描述不可精确测量量子现象的效应代数理论及相关问题，主要结果是： 1。

On the basis of the concept of perfect quantum gas, a physical model of extreme relativity is established for perfect quantum gas, and also according to the conclusions of the state density of the extreme theory of relativity, the densities of quantum statistics′ particle numbers and energy, the extreme relativity′s result of the enthalpy、internal energy and heat capacity of the perfect quantum gas is obtained under the high temperature by strict theory inference.

在理想量子气体概念的基础上，首先建立极端相对论理想量子气体的物理模型；再根据极端相对论的态密度和量子统计的粒子数、能量的密度结论，通过严格的理论推导，得出理想量子气体在高温条件下的极端相对论性的焓、内能和热容量的结果，并将其热容量与高温条件下的理想量子气体、经典理想气体的热容量对比，指出极端相对论与非相对论两种模型、理想量子气体与经典理想气体两种模型的热容量之间的差异，同时分析这些差异的物理原因在于各自气体模型的态密度以及对应体系的波函数的对称性；最后阐明高温条件下极端相对论理想量子气体的热容量在量子统计方面的先进性及应用前景。

According to quantum theory, spinning superconductors should produce a weak magnetic field.

给各种创新活动以力所能及的最大支持并提供一个创新的平台。

In order to study the spilt spectrum of Zeeman effect experiment, the method for the spilt spectrum line of Hg(546. 1 nm) in magnetic field is analyzed based on quantum theory analysis and CCD image disposal.

为了研究塞曼效应的谱线分裂情况，用量子理论和CCD图像相结合的方法分析了Hg(546.1 nm)谱线在外磁场中的分裂。

Thus by measuring the frequency shift for a known field strength, e/me can be determined. Many spectral lines, however, exhibit a much more complicated splitting, often into many components, known as the "anomalous" Zeeman effect, because it could not be explained for many years after its discovery until the development of quantum theory.

然而，很多谱线表现出更加复杂的分裂，常常分裂成很多成分，这种现象被称作&不规则&塞曼效应，因为发现这种效应后的很长一段时间内人们无法对其解释，直到量子理论发展起来。

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％。