Time-Dependent Nuclear Energy-Density Functional Theory Toolkit for Neutron Star Crust: Dynamics of a Nucleus in a Neutron Superfluid

Time-Dependent Nuclear Energy-Density Functional Theory Toolkit for Neutron Star Crust: Dynamics of a Nucleus in a Neutron Superfluid

Blog Article

We present a new numerical tool designed to probe the dense layers of neutron star crusts.It is based on the time-dependent Hartree-Fock-Bogoliubov theory with generalized Skyrme nuclear energy-density functionals of the syil x7 price Brussels-Montreal family.We use it to study the time evolution of a nucleus accelerating through superfluid neutron medium in the inner crust of a neutron star.

We extract an effective mass in the low velocity limit.We observe a arla eagle rock threshold velocity and specify mechanisms of dissipation: phonon emission, Cooper pairs breaking, and vortex rings creation.These microscopic effects are of key importance for understanding various neutron star phenomena.

Moreover, the mechanisms we describe are general and apply also to other fermionic superfluids interacting with obstacles like liquid helium or ultracold gases.