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arXiv 1012.4462hep-thastro-ph.CO
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变色龙标量理论的UV完备化

Towards a UV Completion for Chameleon Scalar Theories

Kurt Hinterbichler, Justin Khoury, Horatiu Nastase

摘要:

变色龙是一种标量场,它直接与具有引力强度的普通物质耦合,但由于它们在高环境物质密度下获得的特性,它们仍然避开了引力测试的严格限制。变色龙理论最初是以一种自下而上的现象学方式构建的,其中势和物质耦合被设计成隐藏标量而不被实验发现。在本文中,我们试图将变色龙的情况下,字符串紧化,从而UV完成的情况下。我们寻找稳定的潜力,可以实现一个筛选机制,我们发现,体积模量,而一般的作品作为一个变色龙,事实上,超对称的潜力所使用的Kachru,Kallosh,林德和Trivedi(KKLT)是这种类型的一个例子。我们认为所有的约束条件,从重力测试,使我们能够把实验约束的KKLT参数。

英文摘要:

Chameleons are scalar fields that couple directly to ordinary matter with gravitational strength, but which nevertheless evade the stringent constraints on tests of gravity because of properties they acquire in the presence of high ambient matter density. Chameleon theories were originally constructed in a bottom-up, phenomenological fashion, with potentials and matter couplings designed to hide the scalar from experiments. In this paper, we attempt to embed the chameleon scenario within string compactifications, thus UV completing the scenario. We look for stabilized potentials that can realize a screening mechanism, and we find that the volume modulus rather generically works as a chameleon, and in fact the supersymmetric potential used by Kachru, Kallosh, Linde and Trivedi (KKLT) is an example of this type. We consider all constraints from tests of gravity, allowing us to put experimental constraints on the KKLT parameters.

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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