The parity anomaly in condensed matter physics

I discuss in detail the recently proposed physical realization of the Parity Anomaly in a PbTe-type crystal with a stacking fault. A close analogy with charged soliton states in one-dimensional systems is presented. A possible way to introduce chiral fermions in a Lattice Gauge Theory is discussed.     

超快光谱技术及其在凝聚态物理研究中的应用

近年来备受关注的超快光谱技术拥有诸多特色,例如极高的时间分辨率,丰富的光与物质的非线性相互作用,可以用光子相干地调控物质的量子态,其衍生和嫁接技术带来许多凝聚态物理实验技术的变革等等.文章介绍了超快光谱技术的一般原理、时间分辨的技术实现和典型构型,并通过具体实例来展示该实验手段在凝聚态物理研究中的应用.     

Long-range power-law correlations in condensed matter physics and biophysics

We discuss the appearance of long-range power-law correlations in various systems of interest to condensed matter physicists and biophysicists, with emphasis on the recent discovery of long-range correlations in DNA sequences that contain non-coding regions.     

一些典型的软物质物理中的非平衡自组织现象

在软物质物理中经常有自组织(self-organization)现象发生.这一现象通常在非平衡的过程中产生,并生成非常美丽和有趣的图案与结构.具体例子包括胶体颗粒的扩散限制凝聚(diffusion limited aggregation,DLA),Hele-Shaw盒中产生的流体分形结构,凝胶的形成(gelation),生物体自组织聚集,以及颗粒类物质(granular material)运动产生的规则图案等.这些现象在软物质物理研究中产生了很多重要结果.文章以比较浅显的文字介绍这些软物质物理中的非平衡自组织现象.     

一些典型的软物质物理中的非平衡自组织现象

在软物质物理中经常有自组织（self-organization）现象发生.这一现象通常在非平衡的过程中产生,并生成非常美丽和有趣的图案与结构.具体例子包括胶体颗粒的扩散限制凝聚（diffusion limited aggregation,DLA）,Hele-Shaw盒中产生的流体分形结构,凝胶的形成（gelation）,生物体自组织聚集,以及颗粒类物质（granular material）运动产生的规则图案等.这些现象在软物质物理研究中产生了很多重要结果.文章以比较浅显的文字介绍这些软物质物理中的非平衡自组织现象.     

超快光谱技术及其在凝聚态物理研究中的应用

近年来备受关注的超快光谱技术拥有诸多特色,例如极高的时间分辨率,丰富的光与物质的非线性相互作用,可以用光子相干地调控物质的量子态,其衍生和嫁接技术带来许多凝聚态物理实验技术的变革等等.文章介绍了超快光谱技术的一般原理、时间分辨的技术实现和典型构型,并通过具体实例来展示该实验手段在凝聚态物理研究中的应用.     

Methods of topological obstruction theory in condensed matter physics

The notion of relative topological textures — nonuniform states of the general type in condensed (ordered) media — is introduced. For the classification of such states, an effective method is proposed which is based on the topological obstruction theory. The examples of relative topological textures are examined within the framework of the approach studied here.     

浅谈计算凝聚态物理

计算物理以计算机为工具,以计算方法和计算软件为手段,近年来发展迅速,在研究物质结构及物理规律方面成功解决了大量传统物理难以解决的难题,已经成为研究自然的理论—计算—实验鼎力三足。文章简要介绍了计算物理的起源和发展,重点关注了计算物理在凝聚态物理方面的应用,介绍了包括精确对角化、数值重正化群、蒙特卡罗、动力学平均场等方法,并阐述了各个方法的特点。在探究新奇物理现象、发展计算方法两方面,讨论了计算凝聚态物理的未来发展方向。     

Connections between quantum chromodynamics and condensed matter physics

Features of QCD can be seen qualitatively in certain condensed matter systems. Recently some of the analyses that originated in condensed matter physics have found applications in QCD. Using examples we discuss some of the connections between the two fields and show how progress can be made by exploiting this connection. Some of the challenges that remain in the two fields are quite similar. We argue that recent algorithmic developments call for optimism in both fields.     

凝聚态物理从头计算的最新进展

文章评述了凝聚态物理从头计算（ab initio calculation）的一些最新进展.分8个问题进行了介绍,它们是：(1)静态密度泛函发展的两种思路;(2)固体的泛函：晶格常数的准确确定;(3)动态（含时）密度泛函及动态密度矩阵泛函;(4)半导体电子结构的计算：带隙和带序;(5)f电子和强关联金属;(6)莫特（Mott）绝缘体; (7)非共价（弱）相互作用;(8)以波函数为基础的研究.此外,文章还提供了一些相关的背景知识.     

Estimating perturbative coefficients in high-energy physics and condensed matter theory

Using our method to estimate perturbative coefficients in quantum field theory (QFT), we consider several examples in high-energy physics and condensed matter theory. The results, in all cases, are remarkably good for the known terms. We also predict the values of as yet unknown terms. Moreover, we consider the general convergence properties of asymptotic series in QFT.     

Mutual Chern-Simons theory and its applications in condensed matter physics

In this paper, the mutual Chern-Simons (MCS) theory is introduced as a new kind of topological gauge theory in 2+1 dimensions. We use the MCS theory in gapped phase as an effective low energy theory to describe the Z ₂ topological order of the Kitaev-Wen model. Our results show that the MCS theory can catch the key properties for the Z ₂ topological order. On the other hand, we use the MCS theory as an effective model to deal with the doped Mott insulator. Based on the phase string theory, the t-J model reduces to a MCS theory for spinons and holons. The related physics in high T _c cuprates is discussed.      

Max Born and his legacy to condensed matter physics

After a presentation of Max Born's most salient biographical data, we discuss his contributions to science and science policy, with special emphasis on those related to condensed matter physics. Our discussion includes journal articles as well as books. The methodology used is both qualitative and quantitative, including number of items, number of formal and informal citations, and other bibliometric indicators such as the recently proposed Hirsch index (h‐index). The data are mainly based on the Thomson/ISI Web of Science (WoS) which covers a carefully selected set of the more prestigious journals dating back to 1900. Born's books and articles not published in the journals covered by the WoS can also be evaluated, provided they are cited within the WoS journals. Some anecdotic and historical details, which have come to the fore in the course of our bibliometric investigations, are included.