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Unconventional Rotational Responses of Hadronic Superfluids in a Neutron Star Caused by Strong Entrainment and a Sigma(-) Hyperon Gap
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 23Article in journal (Refereed) Published
Abstract [en]

I show that the usual model of the rotational response of a neutron star, which predicts rotation-induced neutronic vortices and no rotation-induced protonic vortices, does not hold (i) beyond a certain threshold of entrainment interaction strength nor (ii) in the case of nonzero Sigma(-) hyperon gap. I show that in both of these cases the rotational response involves the creation of phase windings in an electrically charged condensate. Lattices of bound states of vortices which result from these phase windings can (for a range of parameters) strongly reduce the interaction between rotation-induced vortices with magnetic-field carrying superconducting components.

Place, publisher, year, edition, pages
2009. Vol. 103, no 23
Keyword [en]
matter, superconductors, field
URN: urn:nbn:se:kth:diva-19019DOI: 10.1103/PhysRevLett.103.231101ISI: 000272460200009ScopusID: 2-s2.0-71449126865OAI: diva2:337066
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2010-12-13Bibliographically approved

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