The first quantum theory of molecules

In 1912, Bjerrum published the first quantum theory of molecules, to treat the vibrational and rotational energies of diatomic molecules. That theory was incorrect but prepared the next stages of development of quantum mechanics.     

从量子场论看真空的物质形态问题

从量子电动力学、量子色动力学和量子味动力学三方面论述了真空是物质的一种特殊形态，是基态的量子场，而不是物质的一种特殊状态。量子场的基态才是物质的一种特殊状态。搞清真空的物质形态问题可以对研究真空的复杂结构提供理论基础。     

The Wilsonian revolution in statistical mechanics and quantum field theory

We describe how Wilson’s concept of the renormalization group revolutionized our understanding of the physics of phase transitions, and of quantum field theory in general. We underline the key ideas of Wilson, based on earlier ideas of Landau, Ginzburg, Kadanoff and many others, which gave us an insight into the observed universality of diverse physical phenomena, and the remarkable efficacy of a few simple models to describe them.     

A sense of history: History of science and the teaching of introductory quantum theory

This paper argues that some kind of historical perspective is a conditio sine qua non in the teaching of physics. Without a proper historical perspective the student will not experience physics as the living, human endeavour it is; in addition, the historical-exemplaric approach is often beneficial also to the technical and conceptual aspects of physics education by offering a deeper and more critical look at particular physical problems. However, the relationship between physics and history of physics is intrinsically problematic in that the lessons to be learned from history are often counterproductive to those aimed at in science teaching. The tensions between the two approaches may lead to a historically unsatisfactory quasi-history adapted to the perceived needs of science education, but although this dilemma is genuine, there is no reason why it should block a historically oriented teaching of physics. Based on the example of the history of the photoelectric effect as a case in the teaching of introductory quantum theory it is argued that the dilemma between historical truth and didactic usefulness may be circumvented by focussing on a few, carefully selected case studies. The didactic potentials of one such example, the early introduction of the light-quantum, are discussed.Roskilde University Centre, P.O. Box 260, 4000 Roskilde, Denmark.     

量子信息论与量子计算中的六个数学问题

利用组合计数理论、数列和级数知识，采用构造证明的方法研究了量子计数问题，解决了量子理论中的一些计数问题，证明了几个量子信息论中的等式。这些结果即将在其他学科中得到广泛和深入的应用。     

The quantum Zeno effect — watched pots in the quantum world

In the 5th century BC, the philosopher and logician Zeno of Elea posed several paradoxes which remained unresolved for over two thousand five hundred years. In recent times, the Zeno effect made an intriguing appearance in a rather unlikely place — a situation involving the time evolution of a quantum system which is subject to ‘observations’ over a period of time. In 1977, B Misra and E C G Sudarshan published a paper on the quantum Zeno effect, called “The Zeno’s paradox in quantum theory”. Their fascinating result revealed the bizarre workings of the quantum world. In the following article, the quantum Zeno effect is described and a brief outline of some of the work following Misra and Sudarshan’s paper is given. Anu Venugopalan is on the faculty of the Centre for Philosophy and Foundations of Science, New Delhi, on leave from GGS Indraprastha University, Kashmere Gate, Delhi. Her primary research interests are in the areas of Foundations of Quantum mechanics, Quantum Optics and Quantum Information.     

量子信息学中的量子态

量子力学和信息科学结合产生了量子信息学。在量子信息学中人们利用的是量子态本身，其基本任务是量子态的存储、操纵、传输与读出。在实现信息处理的过程中，量子态叠加原理、量子纠缠和量子退相干等基本原理和基本概念应当充分考虑。     

非线性方程孤子-混沌双解的物理意义,泛量子理论和非线性数学的某些应用

某些非线性方程中存在混沌-孤子双解,其具有波粒二象性等物理意义.然后探讨了孤子的量子理论,一方面发展孤子理论为量子化的;另一方面用孤子方法量子化.量子孤子化就对应泛量子理论.最后讨论非线性数学的某些应用.非线性数学是演化、相变等必不可少的条件.数学和物理、化学、天文、生物等的非线性应该共同发展.     

量子计算中的几个组合问题

解决了量子计算中的几个组合问题。     

量子力学中的么正矩阵

对量子力学中的几种具有代表意义的么正矩阵的性质作详细的讨论。     

量子力学中的超算符概念

对量子力学中的线性算符概念进行了研究,通过建立算符函数的微分学引入了超算符概念,并给出了各类超算符的定义,在此基础上利用超算符概念分析量子力学中的典型问题,结果表明超算符概念在量子力学中具有广泛的应用,且使物理意义更加清晰.     

Time and energy operators in quantum mechanics

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Bipolaron in different configuration of quantum confinement

The authors used Landau-Pekar variational method to investigate a strong-coupling singlet optical bipolaron in different configuration of quantum confinement.Numerical and analytical results showed that when configuration changes from quantum dot and wire to well,confinement shows different effect on the formation of a bipolaron.In contrast to a bipolaron in a quantum dot or wire,the binding energy of a bipolaron in a quantum well increases with increasing confinement,indicating that confinement favors bipolaron formation in a quantum well.     

Bipolaron in different configuration of quantum confinement

INTRODUCTION The bipolaron in bulk materials has been ex-tensively discussed in the past decade. With morerecent advances in the creation of nanocrystal withstrong ionic coupling (Hudgins et al., 1997), onenatural problem is that the effect of bipolarons insome quantum low dimensional systems with ef-fective electron-phonon coupling is very strongowing to the confinement. This problem is alsorelevant to the proposal of the bipolaronic mecha-nism for pairing in CuO2 plane (quasi-tw…     

教育理论何以称为理论——兼论教育理论与实践的关系

教育理论不是"一",而是"多".因此,谈论教育理论与实践的关系就要说明是在何种教育理论的意义上来说的.否则,谈论教育理论与实践的关系不仅会造成歧见纷纭、相互攻讦,而且会带来认识上的困惑、迷惘,使本已迷惘的教育理论更加扑朔迷离.教育理论的建构应该"是其所是",使教育理论百花齐放,而不是一枝独秀.