Fundamental density

I just heard Mateos talk at Strings 2007. He clearly mentions that at finite density the ME branes do not exist. The argument being the F1-force balance.
Its a bit funny - because from our work, we know that at fixed density and quark mass, there are no black hole type embeddings for low enough temperature (this is because of the temperature dependence in the expression for the physical density in terms of the charge density q).

I am going to just try to compute the fluctuation spectrum - and then drop the whole thing.