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arXiv quant-ph/9802056quant-ph
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量子电动力学中的声学行为

Acuasal Behavior in Quantum Electrodynamics

A. Widom, Y. N. Srivastava, E. Sassaroli

摘要:

讨论了量子电动力学过程的一般特征。虽然这些过程在经典电动力学理论中不存在,但在量子电动力学理论中,因果过程是众所周知的。例如,任何在时空中带有“环”的费曼图都描述了一个“粒子”,它可以在时间上向前或向后移动,也可以在类似空间的方向上移动。在宏观尺度上的实验测试这种因果关系违反所涉及的工程问题进行了探讨。

英文摘要:

Acausal features of quantum electrodynamic processes are discussed. While these processes are not present for the classical electrodynamic theory, in the quantum electrodynamic theory, acausal processes are well known to exist. For example, any Feynman diagram with a ``loop'' in space-time describes a ``particle'' which may move forward in time or backward in time or in space-like directions. The engineering problems involved in experimentally testing such causality violations on a macroscopic scale are explored.

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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