Kaluza-Klein Monopoles and their Zero Modes

Csaba Csáki, Yuri Shirman, John Terning, Michael Waterbury
2018 Physical Review Letters  
We find the conditions for the existence of fermionic zero modes of the fundamental representation in the background of a Kaluza-Klein (KK) monopole. We show that while there is no zero mode without a real mass, a normalizable zero mode appears once the real mass is sufficiently large. This provides an elegant explanation for the known decoupling of KK monopole effects in supersymmetric theories when a large real mass term is added. We also present an application where the correct counting of
more » ... zero modes plays an essential role in understanding the non-perturbative effects determining the low-energy dynamics.
doi:10.1103/physrevlett.120.071603 pmid:29542947 fatcat:4tdeuldtvng7dnzojmkfdzwbku