arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1502.05456hep-th
收藏

$q-$形域的新局部化机制和Hodge对偶

New localization mechanism and Hodge duality for $q-$form field

Chun-E Fu, Yu-Xiao Liu, Heng Guo, Sheng-Li Zhang

摘要:

本文研究了余维为1的$p-$膜上的$q-$形式域的局部化和Hodge对偶问题.通过无规范固定的广义Kaluza-Klein(KK)分解,得到了体$q-$形式场的两类KK模的类薛定谔方程,它们决定了KK模的局域化和质量谱.发现存在两种零模($0-$能级模):$q-$形式的零模和$(q-1)-$形式的零模,它们不能同时定域在膜上.对于$n-$能级KK模,存在两个相互作用的KK模,一个是有质量的$q-$形式的KK模,另一个是无质量的$(q-1)-$形式的KK模。通过分析有效作用量的规范不变性和选择规范条件,将$n-$能级有质量的$q-$型KK模从$n-$能级无质量的$(q-1)-$型1模中分离出来.我们还发现,体中的Hodge对偶在膜上自然变成了两个对偶。第一个是$q-$形式零模与$(p-q-1)-$形式一之间的Hodge对偶,或$(q-1)-$形式零模与$(p-q)-$形式一之间的Hodge对偶.第二个对偶性是两组KK模之间的对偶性:一组是具有质量$m_n$的$n-$级有质量$q-$形式KK模和一组是$n-$级无质量$(q-1)-$形式模;另一组是具有相同质量$m_n$的$n-$级$(p-q)-$形式1和一组是$n-$级无质量$(p-q-1)-$形式模。由于对偶性的存在,两个对偶体场的KK模的膜上有效场论在物理上是等价的。

英文摘要:

In this paper, we investigate the problem of localization and the Hodge duality for a $q-$form field on a $p-$brane with codimension one. By a general Kaluza-Klein (KK) decomposition without gauge fixing, we obtain two Schrödinger-like equations for two types of KK modes of the bulk $q-$form field, which determine the localization and mass spectra of these KK modes. It is found that there are two types of zero modes (the $0-$level modes): a $q-$form zero mode and a $(q-1)-$form one, which cannot be localized on the brane at the same time. For the $n-$level KK modes, there are two interacting KK modes, a massive $q-$form KK mode and a massless $(q-1)-$form one. By analyzing gauge invariance of the effective action and choosing a gauge condition, the $n-$level massive $q-$form KK mode decouples from the $n-$level massless $(q-1)-$form one. It is also found that the Hodge duality in the bulk naturally becomes two dualities on the brane. The first one is the Hodge duality between a $q-$form zero mode and a $(p-q-1)-$form one, or between a $(q-1)-$form zero mode and a $(p-q)-$form one. The second duality is between two group KK modes: one is an $n-$level massive $q-$form KK mode with mass $m_n$ and an $n-$level massless $(q-1)-$form mode; another is an $n-$level $(p-q)-$form one with the same mass $m_n$ and an $n-$level massless $(p-q-1)-$form mode. Because of the dualities, the effective field theories on the brane for the KK modes of the two dual bulk form fields are physically equivalent.

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。

↑