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Ozgur Polat 621 NUCLEAR PHYSICS NEUTRON STARS AS TYPE-I SUPERCONDUCTORS

Ozgur Polat 621 NUCLEAR PHYSICS NEUTRON STARS AS TYPE-I SUPERCONDUCTORS.

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Ozgur Polat 621 NUCLEAR PHYSICS NEUTRON STARS AS TYPE-I SUPERCONDUCTORS

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  1. Ozgur Polat621 NUCLEAR PHYSICSNEUTRON STARS AS TYPE-I SUPERCONDUCTORS The standard picture of the neutron star core composed of a mixture of a neutron super fluid and a proton type-II SC is inconsistent with observations of long period precession in isolated pulsars. In the following I will show you the proton super fluid inside neutron star is type-I rather than type-II

  2. Theory • No p-vortices and n-vortices simultaneously • If , type-I p SC. Otherwise type-II • For the p SC, • The Landau-Ginsburg free energy - describes only large distances - is invariant w.r.t. phase rotation of and , corresponds to the conservation of the number of Cooper pairs - describes particles interacting via the strong nuclear force proton condensate= , neutron condensate= • Ansatz for the fields describing a proton vortex

  3. Theory Continuous METHODS • Calculation of force between two widely separated proton vortices. By using the asymptotic field solutions • Effective Landau-Ginsburg parameter • Calculation of vortex-vortex interaction energy produces the same result U(d) • Calculation of critical magnetic fields, and If , type-I p SC, otherwise type-II p SC. CONCLUSION Whether proton SC is type-I or type-II depends strongly on the magnitude of the parameter type-I p SC

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