Vortex pinning and dynamics in the neutron star crust

Abstract

The nature of the interaction between superfluid vortices and the neutron star crust, conjectured by Anderson and Itoh in 1975 to be at the heart vortex creep and the cause of glitches, has been a long-standing question in astrophysics. Using a qualitatively new approach, we follow the dynamics as superfluid vortices move in response to the presence of "nuclei" (nuclear defects in the crust). The resulting motion is perpendicular to the force, similar to the motion of a spinning top when pushed. We show that nuclei repel vortices in the neutron star crust, and characterize the force as a function of the vortex-nucleus separation.

supplemental materials included

References in corpus (11)

• Models of Pulsar Glitches
• Local Density Functional Theory for Superfluid Fermionic Systems: The Unitary Gas
• Screening Effects in Superfluid Nuclear and Neutron Matter within Brueckner Theory
• A Unitary Fermi Supersolid: The Larkin-Ovchinnikov Phase
• Linear Algebraic Calculation of Green's function for Large-Scale Electronic Structure Theory
• Large Amplitude Dynamics of the Pairing Correlations in a Unitary Fermi Gas
• Quantum calculation of vortices in the inner crust of neutron stars
• Vortex-nucleus interaction in the inner crust of neutron stars
• Dynamics of Quantum Vorticity in a Random Potential
• Life Cycle of Superfluid Vortices and Quantum Turbulence in the Unitary Fermi Gas
• Relativistic Coulomb excitation within Time Dependent Superfluid Local Density Approximation

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