Abstract
It has recently been appreciated that the conifold modulus plays an important role in string-phenomenological set-ups involving warped throats, both by imposing constraints on model building and for obtaining a 10-dimensional picture of SUSY-breaking. In this note, we point out that the stability of the conifold modulus furthermore prevents large super-Planckian axion monodromy field ranges caused by brane-flux decay processes down warped throats. Our findings imply a significant challenge for concrete string theory embeddings of the inflationary flux-unwinding scenario.
Highlights
KK modes cannot really be decoupled from the 4d effective field theory (EFT) their couplings might be rather harmless and they could just behave as spectators [14]
We find that a large number of monodromies, and a large field displacement, cannot be achieved without destabilising the geometry along the direction parametrised by the conifold modulus
In this note we have argued that axion monodromies related to brane-flux transitions down warped throats come with exponentially suppressed field ranges as given by equation (4.13)
Summary
We introduce the basic ingredients required for our later analysis of instabilities of warped throats associated to conifold singularities. As many of the ingredients are well known, we will be rather concise and refer to the appropriate literature for further details
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