Quark-clustering in cold quark matter

LAI Xiao-Yu; XU Ren-Xin

doi:10.1088/1674-1137/34/9/035

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1331-1334 DOI: 10.1088/1674-1137/34/9/035

Quark-clustering in cold quark matter

LAI Xiao-Yu ^, ,
XU Ren-Xin

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Abstract：
Quarks are proposed to be grouped together to make quark-clusters due to the strong interaction in cold quark matter at a few nuclear densities, because a weakly coupling treatment of the interaction between quarks there would be inadequate. Cold quark matter is then conjectured to be in solid state (i.e., forming a crystal structure) if the inter-cluster potential is deep enough to localize clusters in lattice. Such a solid state of cold quark matter would be very necessary for us to understand different manifestations of pulsar-like compact stars, and could not be ruled by first principles.

References

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. Weber F. Prog. Part. Nucl. Phys., 2005, 54: 1932. Alford M G, Schmitt A, Rajagopal K, Schafer T. Rev. Mod.Phys., 2008, 80: 14553. XU R X. Astrophys. J., 2003, 596: L594. Freire Paulo C C, Wolszczan A, Maureen van den Berg,Hessels Jason W T. Astrophys. J., 2008, 679: 14335. LAI X Y, XU R X. Mon. Not. R. Astron. Soc., 2009, 398:L316. XU R X, TAO D J, Yang Y. Mon. Not. R. Astron. Soc.,2006, 373: L857. Mereghetti S. A Ap Rev., 2008, 15: 2258. LAI X Y, XU R X. Astropart. Phys., 2009, 31: 1289. PENG C, XU R X. Mon. Not. R. Astron. Soc., 2008, 384:103410. ZHOU A Z, XU R X, WU X J, WANG N. Astroparticle Physics, 2004, 22: 7311. CHEN A B, YU T H, XU R X. Astrophys. J., 2007, 668:L5512. Mannarelli M, Rajagopal K, Sharma R. Phys. Rev. D, 2007,76: 4026

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LAI Xiao-Yu and XU Ren-Xin. Quark-clustering in cold quark matter[J]. Chinese Physics C, 2010, 34(9): 1331-1334. doi: 10.1088/1674-1137/34/9/035

LAI Xiao-Yu and XU Ren-Xin. Quark-clustering in cold quark matter[J]. Chinese Physics C, 2010, 34(9): 1331-1334. doi: 10.1088/1674-1137/34/9/035 shu

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Received: 2010-02-04
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Quark-clustering in cold quark matter

LAI Xiao-Yu ^,
XU Ren-Xin

Corresponding author: LAI Xiao-Yu,

Received Date: 2010-02-04
Accepted Date: 1900-01-01
Available Online: 2010-09-05

Abstract:

Quarks are proposed to be grouped together to make quark-clusters due to the strong interaction in cold quark matter at a few nuclear densities, because a weakly coupling treatment of the interaction between quarks there would be inadequate. Cold quark matter is then conjectured to be in solid state (i.e., forming a crystal structure) if the inter-cluster potential is deep enough to localize clusters in lattice. Such a solid state of cold quark matter would be very necessary for us to understand different manifestations of pulsar-like compact stars, and could not be ruled by first principles.