BPS fivebrane stars. Part II. Fluctuations

Author:

Martinec Emil J.ORCID,Zigdon Yoav

Abstract

Abstract We investigate quantum fluctuations of metric components in coherent 1/2-BPS bound states of n1 fundamental strings and n5 NS5-branes. The leading order contribution in an expansion in 1/(n1n5) is calculated via a combination of analytical and numerical methods. We find that the fluctuations are small away from a tiny distance from the source, comparable to the 6d Planck scale. Comparing this result with an analysis in the literature of fluctuations in the maximally mixed state, we conclude that the large fluctuations previously found for the latter are statistical rather than quantum in nature, and that perturbative string theory provides an accurate description of these backgrounds.

Publisher

Springer Science and Business Media LLC

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. The 1/4-BPS building blocks of brane interactions;Journal of High Energy Physics;2024-07-22

2. BPS fivebrane stars. Part I. Expectation values of observables;Journal of High Energy Physics;2024-02-07

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