Colored Flux Tube in Euclidean Spacetime

No Heading The flux tube solution in the Euclidean spacetime with the color longitudinal electric field in the SU(2) Yang-Mills-Higgs theory with broken gauge symmetry is found. Some arguments are given that this flux tube is a pure quantum object in the SU(3) quantum theory reduced to the SU(2) Yang-Mills-Higgs theory.     

The microscopic stress tensor field in particle systems with many-body interactions

It is argued that the up to now only existing expression for the microscopic stress tensor in the presence of many-body interactions, while being formally acceptable, displays some physical shortcomings. These unpleasant features are remedied by explicitly constructing and symmetrizing a new stress tensor field. With the help of this construction, some recent results on the appearance of extremely long-ranged correlations involving the stress tensor field in systems with spontaneously broken symmetries are generalized.     

Statistical mechanics of dissipative transport in crystals

We present a microscopic derivation of dissipative (nonideal) hydrodynamic-like equations for crystals. The local density changes and the lattice displacement (distortion) are treated as independent. In this way we take into account all the eight slow modes predicted by the phenomenological theory, including the socalled vacancy diffusion mode. However, microscopically derived hydrodynamic-like equations are simpler than those postulated in the phenomenological theory. We also derive the exact formal expressions for the solid-state transport coefficients in terms of the Green-Kubo integrals.This paper is dedicated to Prof. Matthieu Ernst on the occasion of his 60th birthday. His advice and encouragement were invaluable in early stages of the research described here.     

光控光子晶体偏光片

提出了一种新颖的调节液晶光子晶体光子带隙的方法.光子晶体波导通过往二维三角形光子晶体的介质柱之间填充液晶得到，光诱导液晶取向以改变液晶的折射指数从而改变光子晶体的光子带隙.数值模拟结果表明：通过外界光场控制所填充的向列相液晶的方向可以对这种二维三角形介质柱光子晶体的禁带结构进行调节.与电场调制方法相比，该光控液晶取向技术具有响应速度快、结构简单的优点.这种可调光子晶体可用于制作新颖的光敏偏光片.     

大学普通物理实验的简化、深化和拓展探讨

在分析大学普通物理实验改革“深化”和“简化”两种流行观点的基础上,针对当前大学普通物理实验存在的主要问题,综合利用简化、深化和拓展等手段,从设立大学普通物理单元实验,改进大学普通物理实验内涵,在大学普通物理实验中完善计算机辅助功能等方面进行了有价值的探讨.     

预应力管桩偏位处理方案

预应力管桩成桩质量好,承载力高,基础造价低,但在复杂地质情况下易出现断桩、弯桩及斜桩现象．结合某工程实例,通过对断桩、弯桩及斜桩的分析,提出了对类似管桩问题的处理办法．