Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2009-03-25
JCAP 1008:010,2010
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
49 pages, 6 figures; updated to match published version
Scientific paper
10.1088/1475-7516/2010/08/010
The effects of anomalies in high density QCD are striking. We consider a direct application of one of these effects, namely topological currents, on the physics of neutron stars. All the elements required for topological currents are present in neutron stars: degenerate matter, large magnetic fields, and P-parity violating processes. These conditions lead to the creation of vector currents capable of carrying momentum and inducing magnetic fields. We estimate the size of these currents for many representative states of dense matter in the neutron star and argue that they could be responsible for the large proper motion of neutron stars (kicks), the toroidal magnetic field and finite magnetic helicity needed for stability of the poloidal field, and the resolution of the conflict between type-II superconductivity and precession. Though these observational effects appear unrelated, they likely originate from the same physics -- they are all P-odd phenomena that stem from a topological current generated by parity violation.
Charbonneau James
Zhitnitsky Ariel
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