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Inhomogeneous phases of strongly interacting matter

By Michael Buballa and Dominik Nickel

Abstract

We discuss possible inhomogeneous phases in two regions of the QCD phase diagram: We begin with color superconducting quark matter at moderately high densities, which is an imbalanced Fermi system due to the finite strange quark mass and neutrality constraints. Within an NJL-type toy model we find that this situation could lead to the formation of a soliton lattice. Similar solutions also exist in the context of the chiral phase transition. As an interesting result, the first-order transition line in the phase diagram of homogeneous phases gets replaced by an inhomogeneous phase which is bordered by two second-order transition lines.Comment: 10 pages, 4 figures. Talk presented at the EMMI workshop and XXVI Max Born Symposium "Three Days of Strong Interactions", Wroclaw, Poland, July 9-11, 200

Topics: High Energy Physics - Phenomenology, Nuclear Theory
Year: 2009
OAI identifier: oai:arXiv.org:0911.2333

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