Dynamics of Quantum Vorticity in a Random Potential

Abstract

I study the dynamics of a superfluid vortex in a random potential, as in the inner crust of a neutron star. Below a critical flow velocity of the ambient superfluid, a vortex is effectively immobilized by lattice forces even in the limit of zero dissipation. Low-velocity, translatory motion is not dynamically possible, a result with important implications for understanding neutron star precession and the dynamical properties of superfluid nuclear matter.

Physical Review Letters, final version

References in corpus (12)

• Constraining Hadronic Superfluidity with Neutron Star Precession
• Precession of isolated neutron stars I: Effects of imperfect pinning
• Thermally-driven Neutron Star Glitches
• Precession of the Isolated Neutron Star PSR B1828-11
• Global three-dimensional flow of a neutron superfluid in a spherical shell in a neutron star
• Bose-Einstein Condensates in Rotating Lattices
• Type-I superconductivity and neutron star precession
• Vortex Unpinning in Precessing Neutron Stars
• Quantum calculation of vortices in the inner crust of neutron stars
• On the stability of precessing superfluid neutron stars
• Incompatibility of long-period neutron star precession with creeping neutron vortices
• Hydromagnetic waves in a superfluid neutron star with strong vortex pinning

Cited by in corpus (31)

• Models of Pulsar Glitches
• Superfluidity in nuclear systems and neutron stars
• Superfluidity and Superconductivity in Neutron Stars
• Mesoscopic pinning forces in neutron star crusts
• Gravitational wave emission from rotating superfluid neutron stars
• Modelling pulsar glitches with realistic pinning forces: a hydrodynamical approach
• Vortex pinning and dynamics in the neutron star crust
• Unpinning triggers for superfluid vortex avalanches
• Angular Momentum Transfer in Vela-like Pulsar Glitches
• Knock-on processes in superfluid vortex avalanches and pulsar glitch statistics
• Pulsar glitch recovery and the superfluidity coefficients of bulk nuclear matter
• Instability of Superfluid Flow in the Neutron Star Core
• Instability of Superfluid Flow in the Neutron Star Inner Crust
• Thermally-Activated Post-Glitch Response of the Neutron Star Inner Crust and Core. I: Theory
• Quark matter in neutron stars
• Superfluid vortex-mediated mutual friction in non-homogeneous neutron star interiors
• The effect of realistic equations of state and general relativity on the "snowplow" model for pulsar glitches
• Relativistic finite temperature multifluid hydrodynamics in a neutron star from a variational principle
• Insights into the physics of neutron star interiors from pulsar glitches
• Vortex Pinning in Neutron Stars, Slip-stick Dynamics, and the Origin of Spin Glitches
• Curvature effect on nuclear pasta: Is it helpful for gyroid appearance?
• Velocity-dependent energy gaps and dynamics of superfluid neutron stars
• Pinned vortex hopping in a neutron star crust
• Simulating pulsar glitches: an $N$-body solver for superfluid vortex motion in two dimensions
• Finite-size effects and collective vibrations in the inner crust of neutron stars
• Hydrodynamic Stability Analysis of the Neutron Star Core
• Microscopic calculation of the pinning energy of a vortex in the inner crust of a neutron star
• Quantum vortices in fermionic superfluids: from ultracold atoms to neutron stars
• Lagrangian perturbation theory for a superfluid immersed in an elastic neutron star crust
• Rotational Coupling of the Pinned Core Superfluid
• Microscopic Calculations of Vortex-Nucleus Interaction in the Neutron Star Crust