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arXiv 1301.4233hep-thgr-qcmath-phmath.MPmath.SG
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复路径积分与理论空间

Complex Path Integrals and the Space of Theories

D. D. Ferrante, G. S. Guralnik, Z. Guralnik, C. Pehlevan

摘要:

为了捕捉量子场论的所有解,对费曼路径积分进行了扩展。这通过选择适当的积分周期来完成,在SL(2,C)中由M参数化,即,允许的积分圈的空间与某些DP-膜及其性质有关,这可以用另一个理论的“物理状态”来进一步理解。我们还期待到表示的费曼路径积分的梅林-巴恩斯变换,使奇异结构的理论前景。这意味着,作为对路径的求和,我们应该考虑更多的一般路径,而不仅仅是布朗路径。最后,我们能够通过我们的例子来研究理论的空间,根据它们的量子相位和相关的斯托克斯现象(穿墙)。

英文摘要:

The Feynman Path Integral is extended in order to capture all solutions of a quantum field theory. This is done via a choice of appropriate integration cycles, parametrized by M in SL(2,C), i.e., the space of allowed integration cycles is related to certain Dp-branes and their properties, which can be further understood in terms of the "physical states" of another theory. We also look into representations of the Feynman Path Integral in terms of a Mellin-Barnes transform, bringing the singularity structure of the theory to the foreground. This implies that, as a sum over paths, we should consider more generic paths than just Brownian ones. Finally, we are able to study the Space of Theories through our examples in terms of their Quantum Phases and associated Stokes' Phenomena (wall-crossing).

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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