On the Rotation and Magnetic Field Evolution of Superconducting Strange Stars

摘要

Are pulsars made up of strange matter? The magnetic field decay of a pulsar may be able to give us an answer. Since Cooper pairing of quarks occurs inside a sufficiently cold strange star, the strange stellar core is superconducting. In order to compensate for the effect of rotation, different superconduc- ting species inside a rotating strange star try to set up different values of London fields. Thus we have a frustrated system. Using Ginzburg-Landau formalism, I solved the problem of a rotating superconduc- ting strange star: Instead of setting up a global London field, vortex bundles carrying localized magnetic fields are formed. Moreover, the number density of vortex bundles is directly proportional to the angular speed of the star.