Dense Quark Matter in Nature | Zendy

Mark Alford | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Dense Quark Matter in Nature

Author(s) -

Mark Alford

Publication year - 2004

Publication title -

progress of theoretical physics supplement

Language(s) - English

Resource type - Journals

ISSN - 0375-9687

DOI - 10.1143/ptps.153.1

Subject(s) - color superconductivity , strange matter , physics , qcd matter , quark star , quantum chromodynamics , particle physics , nuclear matter , quark , up quark , down quark , stars , strange quark , mass gap , top quark , nuclear physics , bottom quark , astrophysics , nucleon

According to quantum chromodynamics (QCD), matter at ultra-high densitieswill take the form of a color-superconducting quark liquid, in which there is acondensate of Cooper pairs of quarks near the Fermi surface. I present a reviewof the physics of color superconductivity. I give particular attention to therecently proposed gapless CFL (gCFL) phase, which has unusual properties suchas quasiquarks with a near-quadratic dispersion relation, and which may well bethe favored phase of quark matter in the density range relevant to compactstars. I also discuss the effects of color superconductivity on the mass-radiusrelationship of compact stars, showing that one would have to fix the bagconstant by other measurements in order to see the effects of colorsuperconductivity. An additional parameter in the quark matter equation ofstate connected with perturbative corrections allows quark matter to imitatenuclear matter over the relevant density range, so that hybrid stars can show amass-radius relationship very similar to that of nuclear matter, and theirmasses can reach 1.9 M_solar.Comment: 16 pages, LaTeX, for proceedings of "Finite Density QCD at Nara

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research