KK modes of $q-$form fields on warped $p-$branes
2013
The Kaluza-Klein (KK) modes of a free massless $q-$form bulk field are investigated on warped $p-$branes with codimension one, including on thin $(p+1)-$dimensional anti-de-Sitter ($AdS_{p+1}$) and de-Sitter ($dS_{p+1}$) branes and thick ones. It is found that the zero mode of the $q-$form field with $q>(p+2)/2$ can be localized on the thin negative tension $AdS_{p+1}^-$ and $dS_{p+1}^-$ branes. For example, a localized $3-$form field will appear on the $AdS_4^-$ and $dS_4^-$ branes, which is different from that on the flat or $dS_{p+1}^+$ branes. While on the thin positive tension $dS_{p+1}^+$ brane, there is a localized zero mode for $q (p+2)/2$ and $q<p/2$ have a localized zero mode on the thick $AdS_{p+1}$ and $dS_{p+1}$ branes, respectively. Furthermore, we also find there are massive bound KK modes for a free massless $q-$form field on some warped thick $p-$branes.
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