Seminarium Fizyki Jądra Atomowego

Pulsar glitches, sudden jumps in rotation period, are regarded as macroscopic manifestation of superfluid interiors of neutron stars. In spite of considerable theoretical effort, accurate large scale models of these phenomena still await implementation. These effective models (typically based on multifluid hydrodynamics) require microscopic input from the underlying nuclear theory. As an example of a microscopic input that is crucial for any standard glitch model, one can list vortex-nucleus interaction or vortex tension coefficient. In my talk, I will demonstrate that the valuable microscopic information can be extracted from the approach based on the time-dependent density functional theory. I will show a fully microscopic real-time evolution of the quantized vortex in presence of nuclear impurity immersed in the neutron matter background. I will also discuss how the microscopic information, derived at nuclear length scales, can be transferred to large scale models of the neutron stars that operate on length scales of km.