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arXiv 0904.4112hep-th
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利用磁通量提高开弦对产生率

The open string pair-production rate enhancement by a magnetic flux

J. X. Lu, Shan-Shan Xu

摘要:

我们扩展了\cite{Lu:2009yx}的振幅计算,以穷尽剩余的情况,其中一组D $_p$膜携带一个通量(电或磁)平行于另一组也携带一个通量,但与两个通量共享最多一个共同的场强指数。然后我们发现,振幅的基本结构保持不变时,两个通量共享至少一个共同的指标,但它是更一般的两个通量共享没有共同的指标。我们讨论了振幅的各种性质,如大分离极限,各种不稳定性的发生和开弦对的产生。特别是,当一个磁通量是电和弱,另一个是磁和固定的,我们发现,开放的字符串对生产率大大提高了这个磁通量的存在时,这两个磁通量没有共同的场强指数和这个率变得显着时,分离的顺序是字符串规模。

英文摘要:

We extend the amplitude calculations of \cite{Lu:2009yx} to exhaust the remaining cases for which one set of D$_p$ branes carrying a flux (electric or magnetic) is placed parallel at separation to the other set carrying also a flux but with the two fluxes sharing at most one common field-strength index. We then find that the basic structure of amplitudes remains the same when the two fluxes share at least one common index but it is more general when the two fluxes share no common index. We discuss various properties of the amplitudes such as the large separation limit, the onset of various instabilities and the open string pair production. In particular, when one flux is electric and weak and the other is magnetic and fixed, we find that the open string pair production rate is greatly enhanced by the presence of this magnetic flux when the two fluxes share no common field-strength index and this rate becomes significant when the separation is on the order of string scale.

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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