A study on the deconfined degree of freedom (g1) and the running coupling constant ()

Shalaby, Asmaa G.

doi:10.5897/ijps11.1717

Cited by 1 publication

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References 10 publications

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“…Recent investigations indicate that the core of super dense astrophysical objects like massive neutron stars, quark stars, and magnetars are constructed by quarks and gluons in their deconfined state. This means that quarks are very close together in a situation where the strong force becomes negligible as the constant of strong coupling α s goes toward zero [7,8], while the electromagnetic coupling constant α remainsalmost unchanged [9,10]. In such media, electromagnetic interaction plays a dominant role, and thus one can apply quantum electrodynamics version of classical mechanics together with the hydrodynamics equations [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Soliton solutions of MHD equations in cold quark gluon plasma

Ghaani¹,

Javidan²

2020

Phys. Scr.

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We study magnetohydrodynamic (MHD) equations in a non-relativistic ideal and cold quarkgluon plasma. We use a simple equation of state for the quark-gluon plasma (QGP) and expand the MHD equations around the system equilibrium situation. The complete set of equations shows that a magnetic field is formed in the environment due to the motion of electrically charged components. The resulting magnetic field causes to create stable solitary waves, which is governed by a modified form of the ‘derivative nonlinear Schrodinger’ equation. Analytical solutions of this equation have been derived, and its characteristics are discussed. It is shown that the presence of a magnetic field stabilizes the solitary waves in such deconfined media. Dynamics and identifications of derived stable localized waves are important results that can be used in quantum plasmas, lattice QCD simulations, the evolution of nuclear matter in the form of nuclear-acoustic waves generation, excitations, wave propagation, and stability problems as well as in the evolution of super dense astrophysical objects.

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