Relaxation of Electron Velocity in a Rotating Neutron Superfluid: Application to the Relaxation of a Pulsar's Slowdown Rate

Details Relaxation of Electron Velocity in a Rotating Neutron Superfluid: Application to the Relaxation of a Pulsar's Slowdown Rate Relaxation of Electron Velocity in a Rotating Neutron Superfluid: Application to the Relaxation of a Pulsar's Slowdown Rate

Sep 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971phrvd...4.1589f&link_type=abstract

Physical Review D, vol. 4, Issue 6, pp. 1589-1597

Physics

51

Scientific paper

We estimate the relaxation time τ of an average electron velocity relative to a dilute array of vortex cores in a rotating, s-wave-paired neutron superfluid. At low temperatures, τ is found to vary exponentially with Δ2ɛF, the energy scale of vortex core excitations, where Δ is the gap parameter and ɛF is the neutron Fermi energy. For reasonable choices of Δ and ɛF, we find values of τ which include the values of a year and of several days observed, respectively, in the post-speedup relaxation of the Vela and Crab pulsars' slowdown rates.

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