One-loop effect of null-like cosmology's holographic dual super-Yang-Mills

Feng Li Lin, Dan Tomino

研究成果: 雜誌貢獻文章

11 引文 斯高帕斯(Scopus)

摘要

We calculate the 1-loop effect in super-Yang-Mills which preserves 1/4-supersymmetries and is holographically dual to the null-like cosmology with a big-bang singularity. Though the bosonic and fermionic spectra do not agree precisely, we do obtain vanishing 1-loop vacuum energy for generic warped plane-wave type backgrounds with a big-bang singularity. Moreover, we find that the cosmological "constant" contributed either by bosons or fermions is time-dependent. The issues about the particle production of some background and about the UV structure are also commented. We argue that the effective higher derivative interactions are suppressed as long as the Fourier transform of the time-dependent coupling is UV-finite. Our result holds for scalar configurations that are BPS but with arbitrary time-dependence. This suggests the existence of non-renormalization theorem for such a new class of time-dependent theories. Altogether, it implies that such a super-Yang-Mills is scale-invariant, and that its dual bulk quantum gravity might behave regularly near the big bang.

原文英語
期刊Journal of High Energy Physics
2007
發行號3
DOIs
出版狀態已發佈 - 2007 三月 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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