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arXiv quant-ph/9809030quant-ph
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量子理论中的瞬时扩展与爱因斯坦因果关系

Instantaneous Spreading and Einstein Causality in Quantum Theory

Gerhard C. Hegerfeldt

摘要:

在非相对论性的量子力学中,一个自由粒子的波函数,最初在一个有限的体积中,立即扩展到无穷大。在非相对论理论中,这是无关紧要的,但我们表明,在相对论量子理论中可以发生同样的瞬时扩散,并且在相距很远的系统中跃迁概率可以瞬时变为非零。我们讨论这如何影响爱因斯坦因果关系。

英文摘要:

In nonrelativistic quantum mechanics the wave-function of a free particle which initially is in a finite volume immediately spreads to infinity. In a nonrelativistic theory this is of no concern, but we show that the same instantaneous spreading can occur in relativistic quantum theory and that transition probabilities in widely separated systems may instantaneously become nonzero. We discuss how this affects Einstein causality.

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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