Jesus Cruz Rojas
Speaker affiliation: 
University of Southampton
Tuesday, December 4, 2018 - 12:00
Seminar room (46/5081)
Holographic colour superconductivity and neutron stars

The difficulty of describing the gauge dependent biquark condensate in the QCD colour superconducting phase has made it hard to construct a holographic dual of the state. To side step this problem, we argue that near the chiral restoration transition in the temperature-chemical potential plane, the strongly coupled gluons are likely completely gapped so that the color quantum numbers of the quarks can be thought of below that gap as global indices. A standard anti-de Sitter–superconductor model can then be used to analyze the fermionic gap formation. We relate the standard interaction of the holographic superconductor to the strength of the gapped gluons. The result is a holographic description of the QCD color superconducting phase diagram. We them use a bottom-up holographic model for strongly interacting quark matter to study the properties of neutron stars and try to include our description of colour superconductivity. Slides can be found here.