查询词典 quantum statistics

It concludes the describing circle tractarian state of principal quantum number, angular quantum number and magnetic quantum number , and the describing electron spin state of spin quantum number.

包括表示轨道运动状态的主量子数、角量子数和磁量子数，以及表示电子自旋运动状态的自旋量子数。

The goal of quantum computing is directed towards multi-qubits. In the process, the crucial problem we are facing is how to design corresponding quantum logic gate network through universal quantum logic gate according to the quantum computing task, that is, unitary transformation.

量子计算的目标是向多量子位的方向发展，在此过程中，我们面临的关键问题是针对量子计算任务如何由通用的量子逻辑门来设计相应的量子逻辑网络，即酉变换。

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。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容，我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链，我们得到的主要结果和创新之处是：(1)证明了这一模型具有一种隐藏的对称性，即自旋第三分量为零的格点数目是一个守恒量，并证明基态出现在空穴数目为零的子空间中；(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型，并给出了相应严格的波函数及能谱；(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变，我们得到了量子临界点的精确位置，并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

Further theoretical analysis demonstrated the lateral effective width of crescent-shaped quantum wires was 6nm within the regime of quantum size. With two-dimensional separated-confinement-heterostructures, the multi-quantum-wire laser arrays operated in pulsed condition (1kHz/1μs) at room temperature, and their pulse light outpower reached more than 115mW, which is the best among all quantum wire lasers reported previously.

这种多量子线激光器列阵具有二维分别限制的异质结构，并在室温脉冲（重复频率1kHz，脉宽1μs）下产生激射，光脉冲线性输出功率可达115mW以上，这是目前国际上各类量子线激光器的最好水平；子带间能隙最大为27meV，与室温下热离化能相当，优于目前国际上报道的同类量子线激光器的最好水平。

In addition, these effects can also be applied in the design of highly sensitive magnetometers, quantum computation, the quantum logic gate, quantum switches and quantum interferometric optical lithography and so on.

此外，这些效应还可应用于高灵敏磁力计的设计，量子计算，量子逻辑门，量子开关及量子干涉光学平版印刷术等。

With the precondition of not importing magnetic charge, we gave rules of magnetic flux quantization, and the relations between magnetic flux quantization, Principle Quantum Number , Angular Quantum Number , Magnetic Quantum Number and Spin Quantum Number were built.

在不引入磁荷的前提下，给出了磁通量子化规则，建立了磁通量子化与主量子数、角量子数、磁量子数和自旋量子数的联系。

After reviewing the criticism on NMR quantum computing given by Braunstein et al, we reiterate that the power of the quantum computers comes from quantum U transformations and superpositions of quantum states rather than entanglements.

然后回顾了Braunstein等人对NMR量子计算的批评，给出了我们的分析和反驳，认为量子计算根源于量子U变换和态的叠加原理，而不应过分强调纠缠的作用。

Quantum cryptology is a new method for secret communications. Compared to the classical cryptography, the greatest advantages of quantum cryptography are provable security and detectives; this is because the security of quantum cryptography is ensured by quantum no-cloning and Heisenberg's uncertainty principle that instead of relying on some complex mathematical problems.

量子密码技术是一种实现保密通信的新方法，它比较于经典密码的最大优势是具有可证明安全性和可检测性，这是因为量子密码的安全性是由量子物理学中量子不可克隆性和Heisenburg测不准原理来保证的，而不是依靠某些难解的数学问题。

Quantum cryptography is the combination of classical cryptography and quantum mechanics. The characteristics of quantum mechanics, such as no-cloning theorem and Heisenberg's uncertainty principle, provide the perfect secrecy for quantum cryptographic communication.

量子密码学是密码学与量子力学结合的产物，利用量子不可克隆定理和海森堡测不准原理等量子特性，量子密码通信理论上已经证明是绝对安全。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。