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arXiv 2410.04535quant-ph
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量子电动力学 Landau-Peierls 表述的多时间版本

Multi-Time Version of the Landau-Peierls Formulation of Quantum Electrodynamics

Matthias Lienert, Roderich Tumulka

AI总结:

本文将 Landau-Peierls 的简化量子电动力学 Schrödinger 方程推广为多时间形式,获得更自然、规范透明且显明 Lorentz 协变的演化方程,并阐明相关类空曲面数学结构。

摘要:

Landau 和 Peierls 在粒子位置表象中写下了一个简化版量子电动力学的哈密顿量。我们给出了他们 Schrödinger 方程的多时间版本,该版本相比原方程具有若干优势:时间演化方程更简单、更自然;它们在规范选择方面更加清晰;而且或许最重要的是,它们具有显明的 Lorentz 协变性。我们讨论了多时间方程的性质。在此过程中,我们还讨论了类空曲面上的 Lorentz 协变三维 Dirac delta 分布,以及任意规范下类空曲面上光子波函数的内积。

英文摘要:

Landau and Peierls wrote down the Hamiltonian of a simplified version of quantum electrodynamics in the particle-position representation. We present a multi-time version of their Schrödinger equation, which bears several advantages over their original equation: the time evolution equations are simpler and more natural; they are more transparent with respect to choice of gauge; and, perhaps most importantly, they are manifestly Lorentz covariant. We discuss properties of the multi-time equations. Along the way, we also discuss the Lorentz covariant 3d Dirac delta distribution for spacelike surfaces and the inner product of photon wave functions on spacelike surfaces in an arbitrary gauge.

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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