arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math-ph/0207010math-phmath.MP
收藏

Dirac粒子的通量过曲面定理

Flux-Across-Surfaces Theorem for a Dirac Particle

D. Duerr, P. Pickl

摘要:

考虑相对论性自旋1/2粒子的渐近演化。即波函数满足狄拉克方程且具有外部静电势的粒子。我们证明了粒子穿过(探测器)表面的概率收敛到概率,即粒子的动量方向位于(探测器)表面所定义的立体角内,因为表面的距离趋于无穷大。这推广了早期的非相对论性结果,被称为通量跨表面定理,相对论制度。

英文摘要:

We consider the asymptotic evolution of a relativistic spin-1/2-particle. i.e. a particle whose wavefunction satisfies the Dirac equation with external static potential. We prove that the probability for the particle crossing a (detector) surface converges to the probability, that the direction of the momentum of the particle lies within the solid angle defined by the (detector) surface, as the distance of the surface goes to infinity. This generalizes earlier non relativistic results, known as flux across surfaces theorems, to the relativistic regime.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑