Properties of dense QCD and applications to neutron stars

博士项目旨在理解由强相互作用控制的大重子密度的物质。由于第一原理计算目前无法在这种情况下实现，因此该项目将利用有效的理论和模型计算。更具体地说，重子和夸克物质之间的跃迁将在现象学模型中进行研究，根据结果和进展，也将在使用规范弦二象性的方法中进行研究。将特别强调在相变附近预期的非均匀相，如所谓的手性密度波及其与混合相的竞争。预期的结果将与QCD相图有关，也与中子星的现象学有关。例如，恒星内部具有各向异性费米表面的非均匀层可能会影响中微子发射率，从而影响恒星的冷却行为。

The PhD project aims at understanding matter at large baryon densities, governed by the strong interaction. Since first-principle calculations are currently out of reach in this regime, the project will make use of effective theories and model calculations. More specifically, the transition between baryonic and quark matter will be investigated within a phenomenological model and - depending on the results and progress - also within methods using the gauge-string duality. Special emphasis will be put on non-uniform phases that are expected in the vicinity of the phase transition such as the so-called chiral density wave and its competition with mixed phases. The expected results will be relevant for the QCD phase diagram but also for the phenomenology of neutron stars. For instance, a non-uniform layer inside the star with an anisotropic Fermi surface may affect neutrino emissivity and thus the cooling behavior of the star.