关于引力场的能量问题

本文讨论引力场中局部区域的能量问题。这里提出了一个新的引力场总能量-动量赝张量密度,它所表示的引力场局部空间区域中的能量对纯空间坐标变换是不变量,因而引力场的局部区域能量具有确定的物理意义。关于Schwarzschild场的能量和动量,新的赝张量给出的结果要比现有广义相对论文献中的其他形式的赝张量所给出的结果较为合理。文中还讨论了在引力理论中质量与能量的关系问题。 关键词：     

立体欠缺角和排斥力

本文指出整体磁单极引力效应是立体欠缺角加上一个排斥力,而不是新近文献中讨论的立体欠缺角加上一个吸引力,并讨论了整体磁单极的引力透镜性质和磁单极反磁单极对的湮没机制。     

重力场中的熵产生研究

重力场中的大气处于非平衡态，其温度是空间的函数，不同的等温面之间要产生热流，从而改变熵的空间分布。本文推导出重力场中的熵产生公式，并描绘出熵产生随高度变化的近似曲线。     

重力场和正交均匀电磁场中的旋轮线(摆线)

用初等方法证明等时摆的摆锤所描成的曲线和最速降落曲线都是旋轮线 ;证明在正交的均匀电场与均匀磁场中运动的带电粒子的轨迹也是旋轮线 ;讨论了重力场和正交均匀电磁场中质点的运动之间的类比     

引力场中的应力张量及其应用

根据引力场和静电场的相似性质，通过类比方法由静电场的麦克斯韦应力张量得出了引力场中的应力张量，并用它计算均质球体内部的万有引力。     

MASSIVE SCALAR PARTICLE IN THE GRAVITATIONAL FIELD OF A MICROCOSMIC BLACK HOLE

The finite motion of a massive scalar particle in the gravitational field of a microcosmic black hole with weak relativistic approximation is discussed. In the Schwarzschild field, using the condition for balance σ=0, we obtain the relation between the produced and captured amplitudes for particles. In the Kerr field we show that the attenuation depends on the moment of the black hole and the attenuation process becomes an exciting one when ωh.     

A NEW PROCEDURE GENERATING THE SOLUTIONS OF STATIONARY AXIALLY SYMMETRIC GRAVITATIONAL FIELD EQUATIONS

A new procedure used to generate a set of solutions of stationary axially symmetric gravitational field equations is presented. It is shown that the Chandrasekhar metric is the most simple member of our solutions for n=1.Making use of this procedure we obtained a new exact solution of static axially sym-metric Einstein-Maxwell equations.It represents the exterior field of an isolated mass m with electrical dipolemoment.     

引力场中标量粒子波方程的玻姆量子势描述

对于引力场中标量粒子的Klein-Gordon方程,在引入玻姆量子势后,可写出类似于经典粒子的轨道运动方程,继而可表示成重新定义的度规空间中的测地线方程。     

A Universal Regulator?

By using the principle of metrical invariance which requires that all physical laws are independent of the choice of units (alternatively, all physical laws are invariant with respect to scale transformations of space-time coordinates) and Goldstone's theorem, a universal regulator is discovered. The cosmic field is the Yang-Mills field of the local scale transformations. Its physical role is as follows. Cosmon, its quantum, is a massless, spinless, and neutral particle. The cosmic field is created by inertial masses. Therefore it participates in all physical processes and if its presence is taken into account, then the quantum field theory is free from all ultraviolet infinities. From the point of view of Yang-Mills field theory, it is proved that the so-called gravitational masses are identical with inertial masses and the gravitational field is created by inertial masses moving non-inertially. This fact permits to solve satisfactorily the problem of energy-momentum complex of the gravitational field. The system of equations which defines simultaneously the cosmic and gravitational fields is established. A non-Einstein cosmology is outlined.     

矢引力子场度规场引力理论的共形平直静止解及引力场的能量动量赝张量的正常性

本文求出了VGM引力理论的共形平直静止解。文中把胡宁表达式引入VGM,它同样是守恒的能量动量表达式。对于单个集中质量的引力场,与GR一样,可证实引力质量与惯性质量相等。但Einstein的等效原理在这理论中并不成立。利用所求得的解,可知当n<1/4时,引力场的能量动量赝张量就是正常的。 关键词：     

相对论热力学向量理论对Schwarzschild场中物质系统特性的研究

应用相对论热力学向量理论，讨论了Ｓｃｈｗａｒｚｓｃｈｉｌｄ场中球对称静态理想流体恒星结构，得到了Ｔｏｌｍａｎ-Ｏｐｐｅｎｈｅｉｍｅｒ-Ｖｏｌｋｏｆ方程，并且就该引力场中粒子系统的不同运动状况做了讨论，由此得到了与经典极限相符合的结果．     

A Non-geometric Relativistic Theory of Gravitation

A non-geometric relativistic theory of gravitation is developed by defining a semi-metric to replace the metric tensor as gravitational vector potential. The theory show that the energy-momentum tensor of the gravitational field belong to the gravitational source, gravitational radiation is contained in Einstein’s field equations that including the contribution of gravitational field, the real physical singularity in the gravitational field can be eliminated, and the dark matter in the universe is interpreted as the matter of pure gravitational field.     

在地球引力场中进行广义相对论第四类实验的可能性

本文用广义相对论计算了引力场对干涉仪的影响。结果表明,如果象通常那样把物理长度定义为固有长度,那么当把干涉仪转动90℃时条纹移动为2.2×10^-10(其中取干涉仪臂长1m,光波波长为1μm)。 关键词：     

Poincaré引力规范场和1/2自旋粒子的运动

木文以Poinaré群作为引力规范群,在有挠率和曲率的空间中,讨论了当引力拉氏量包含场强的线性项与二次项时体系的运动方程,指出球对称真空静引力场方程在“宏观”极限下可以得到Schwarzchild解,因此它与目前关于广义相对论的实验验证是一致的,但在“微观”极限下,方程预示着一种新的短程作用,讨论了自旋1/2的粒子作为检测粒子在这种球对称真空静场中的运动,指出运动方程只与仿射联络的黎曼部分有关,并和广义相对论的相应方程具有同样的形式。 关键词：     

A minimal relativistic model of gravitation within standard restrictions of the Classical Theory of Fields

The minimal relativistic model of gravitation on the basis of the gauge-invariant theory of the linear scalar massless field is suggested. The principle of the multiplicative inclusion of gravitational interaction, the requirements being that the simplicity and invariance of the theory under the allowed (gauge) transformation of potential Ф → Ф′ = Ф + const as the basis of the approach, is used. A system of gauge-invariant gravitational field and matter equations is obtained and an energy-momentum tensor with a positively defined density of the field energy is constructed. The exact solutions to equations for the central static field and for fields of spherically symmetric and plane gravitational waves in the free space and in the material media are obtained.     

梯度磁场下磁流体三维结构的格子-Boltzmann方法模拟

考虑磁性颗粒受到的各种内力与外力包括重力、布朗力、van der、Waaks力、磁偶极-偶极作用力以及外磁场作用力,建立了描述磁流体结构的两相格子-Boltzmann三维模型,对外加梯度磁场条件下磁流体的介观结构进行了模拟.模拟结果表明:外加梯度磁场时磁流体粒子沿梯度方向聚集并出现分层现象,且随时间推移和外加磁场增大,分层现象越来越明显.     

A new type of quantum interferometer for gravitational wave detection

We present an orientational quantum interferometer sensitive to gravitational waves that is based on orienting quantum objects like molecules, atoms, or nuclei in space. The detection principle is based on inducing non-sphericity to the corresponding wave functions by light-pulses. In the field of a gravitational wave these objects then possess spectra that depend on their orientation in space. In our measurement scheme we investigate the adiabatic influence of a monochromatic gravitational wave over a quarter gravitational wave period and compare the corresponding frequencies at instances with maximal and vanishing gravitational wave elongation. We therefore explore the effect over a quarter gravitational wave period (or wavelength) and the resulting frequency shift scales with the binding energy of the system times the amplitude of the gravitational wave. In particular, a gravitational wave with amplitude h = 10⁻²³ will induce a frequency shift of the order of 110 μHz for an atom interferometer based on a 91-fold charged uranium ion.     

重力场下单循环与双循环小通道热驱动比较研究

本文以实验的方法,对重力场下单循环与双循环小通道热驱动进行了比较研究。两者都是一端加热,一端冷却,利用彻体力场下流体的热驱动来实现换热。实验结果表明,在热流密度相同的情况下,双循环小通道比单循环具有更好的换热效果。因此,将微小循环通道换热运用于涡轮叶片的冷却时可以考虑采用双循环甚至多循环通道。     

标架形式的简化旋量体系及其对杨振宁方程的应用

本文给出时空流形的一种简化的旋量描述形式。特别是证明了在Newman-Penrose方程中有六个多余的方程。作为对杨振宁引力场方程的应用,求得全部O型和一部分N型“纯粹空间”。