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arXiv 0808.3237quant-ph
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狄拉克方程在相对论陀螺经典力学中的作用

The role of Dirac equations in the classical mechanics of the relativistic top

Enrico Santamato

摘要:

给出了单粒子自旋Dirac方程的严格\textit{ab initio}推导.发现用背景外尔共形几何表示的粒子的一般汉密尔顿-雅各比方程可以通过\textit{ansatz}解精确且以封闭形式线性化,该解可以直接解释为4-旋量狄拉克方程的“量子波函数“$ψ_4$。特别是,该模型的所有量子特征都来自于位形空间的共形曲率作为势和与$ψ_4$密切相关的Weyl“前势”之间的微妙相互作用,后者作用于粒子轨迹。在这里通过假设闵可夫斯基度规来实现的理论,可以很容易地扩展到任意时空的黎曼度规,例如在广义相对论的背景下采用的黎曼度规。这种新的理论方案,被称为“仿射量子力学“,似乎是普遍的应用,并有望打开一个有前途的前景,在现代的努力,旨在统一的自然力与引力。

英文摘要:

A rigorous \textit{ab initio} derivation of the (square of) Dirac's equation for a single particle with spin is presented. The general Hamilton-Jacobi equation for the particle expressed in terms of a background Weyl's conformal geometry is found to be linearized, exactly and in closed form, by an \textit{ansatz} solution that can be straightforwardly interpreted as the "quantum wave function" $ψ_4$ of the 4-spinor Dirac's equation. In particular, all quantum features of the model arise from a subtle interplay between the conformal curvature of the configuration space acting as a potential and Weyl's "pre-potential" closely related to $ψ_4$, which acts on the particle trajectory. The theory, carried out here by assuming a Minkowsky metric, can be easily extended to arbitrary space-time Riemann metric, e.g. the one adopted in the context of General Relativity. This novel theoretical scenario, referred to as "Affine Quantum Mechanics", appears to be of general application and is expected to open a promising perspective in the modern endeavor aimed at the unification of the natural forces with gravitation.

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。

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