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   四维矢量 在 物理学 分类中 的翻译结果: 查询用时:0.135秒
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四维矢量    
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  four-dimensional vector
    use the reletionship of the four-dimensional vector change between the energy and momentum the leads to the changing principle of the applied force between the electric charges, Comment on the reactions between the electric charges in the parellel movement and the reations between the electric charges in the vertical movement.
    利用能量──动量四维矢量变换关系导出电荷间作用力的变换规律,讨论了平行运动电荷间相互作用和垂直运动电荷间的相互作用。
短句来源
  four-dimension vector
    Therefore, A, is confirmed to be a four-dimension vector, which provides a massive foundation of the covariance of these equations under Lorentz transformation.
    特别是对四维势A_μ的变换性质进行了分析,从而确定A_μ是一个四维矢量,使该方程在变换中的不变性有了坚实的基础。
短句来源
  four dimensions vector
    From the angel of four dimensions vector and physics observation, this paper discusses the coordinate transform relationship between the relative movement inertia reference frames.
    文章从四维矢量、物理观测的角度出发,就相互运动惯性系之间的坐标变换关系进行讨论。
短句来源
  4-vector
    The relativistic relation of radiant heat was educed by transforming energy-momentum 4-vector of a single photon. The elicited results make sure P-E theory of relativistic thermodynamics once again.
    通过单个光子的能量-动量四维矢量变换,导出了辐射热量的相对论关系,所得的结果再一次证实了相对论热力学的P_E理论.
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  four-dimensional vector
A formulation of the four-dimensional vector laws of physics which emphasizes the transformation of position and time using the four-vectors (R', 0) and (0,ct') is presented.
      
It is shown that the geometrical origin of gauge transformations may be found if one considers the eight-dimensional spinor space rather than the four-dimensional vector space as the basis of a physical theory.
      
It is shown that the geometrical origin of gauge transformations may be found if one considers the eight-dimensional spinor space rather than the four-dimensional vector space as the basis of a physical theory.
      
Homogeneity for Surfaces in Four-Dimensional Vector Space Geometry
      
We construct a complete Riemannian metric on the four-dimensional vector space ?4 which carries a two-dimensional space of twistor spinor with common zero point.
      
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  4-vector
An expression for the current density 4-vector is obtained for the medium under consideration.
      
An expression for the current density 4-vector is obtained for the medium under consideration.
      
An expression for the current density 4-vector is obtained for the media considered.
      
It is shown that, near the mass surface of the real particle, these quantities constitute a 4-vector.
      
A common assumption in quantum field theory is that the energy-momentum 4-vector of any quantum state must be time-like.
      
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  其他


In this paper, a covariant partial wave analysis of interactions of two particles with low spin value is discussod. Covariant angular momentum operators and relativistic invariant angular quantum numbers are introduced. Using the commutation relations of the covaxiant orbital angular momentum operators and the fou-rdimensional relative momentum operators, the representatives of the covariant orbital angular momenta in the four-dimersional relative momentum representation are uniquely determined, and their eigenfunctions...

In this paper, a covariant partial wave analysis of interactions of two particles with low spin value is discussod. Covariant angular momentum operators and relativistic invariant angular quantum numbers are introduced. Using the commutation relations of the covaxiant orbital angular momentum operators and the fou-rdimensional relative momentum operators, the representatives of the covariant orbital angular momenta in the four-dimersional relative momentum representation are uniquely determined, and their eigenfunctions are obtained. In the case of particlcles with 1/2 spin and photons, rising the Dirac's equations and the Maxwell's equations, spin operators are defined as the constitutions of the covariant total angular momentum operators. Covariant partial wave analyses for scattering of two particles with O, 1/2 spin, and photoproduction of pious on nucleons are obtained, invariant amplitudes are expressed in terms of relativistic invariant quantities. Usual angular quantum numbers and cosines of scattering angles in the center-of-mass system are replaced by the relativistic invariant angular quantun numbers and scalar products of initial and final four-dimensional relative momenta, respectively. Modulus of total four-momentun take roles as energies in the center-of-mass system in the old noncovariant partial wave analysis. Our results can remove the difficulty that the formalism of angular momontum is not suitable when seeka relativistic invariance in the study of a scattering process through the partial wave expansion.

本文討論低自旋情况下的两粒子相互作用的协变的分波分析問題。引入了协变的角动量算符和相对論不变的角量子数,利用协变的軌道角动量算符与四維相对动量算符的对易关系,唯一地定出了协变的軌道角动量算符在四維相对动量表象中的表示式和它的本征函数。在自旋1/2的粒子和光子的情况下,利用狄拉克方程和麦克斯威方程,定义了作为协变的总角动量組成部分的自旋算符,并求出了它們与协变的軌道角动量算符的耦合。对自旋0,1/2的粒子的散射和光致产生过程,作出了协变的分波分析,用四維不变量表出了不变振幅。通常的角量子数和质心系中散射角的余弦,現今換成了相对論不变的角量子数和始、末态中的四維相对动量(单位四維矢量)的标量积。非协变分波分析中质心系中的能量的作用,由四維总动量的模来代替。我們的結果消除了在利用分波分析研究散射过程时的角动量公式体系不便保持相对論不变形式的困难。

The author holds that the relativistic mass is not a physical object. This paper points out contradictions of therelativistic mass according to mass-energy relation, analyses the experiments that verified mass-velocity relation.

在满足洛伦兹协变性的狭义相对论四维矢量表述申,并未引入相对论质量。本文认为相对论质量不是物理实在,并从质能关系出发指出由相对论质量概念导致的矛盾之处,对验证“质速关系”的实验作了相应的分析,认为这些实验尚不能证实相对论质量是物理实在。

By way of discussing transformations of the 4-dimensional vectors and therelation between the 4-dimensional vecters and the forces F,a force-transformation formu-la in general cases is given,which is used to calculate the force between two electric charges.

四维矢量的变换及四维力矢量和力F的关系,较为简便地导出了一般情况下力的变换公式。并用该公式讨论了两电荷间的作用力。

 
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