Bulk Viscosity of Strange Quark Matter at First-Order Perturbative QCD Approximation

YU Yun-Wei; ZHENG Xiao-Ping

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2004, Vol. 28> Issue(3) : 258-261

Bulk Viscosity of Strange Quark Matter at First-Order Perturbative QCD Approximation

YU Yun-Wei ^, ,
ZHENG Xiao-Ping

College of Physical Science and Technology,Central China Normal University,Wuhan 430079,China

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Abstract：
Taking the thermodynamics potential for cold dense QCD in perturbation theory to the first order in coupling constant account, we calculate the bulk viscosity of strange quark matter(SQM), and find that the result is approximately 10 2 times than that of the ideal quark gas. In comparison with quasi-particle description model, we have the same result in order of magnitude. It is useful to improve the theory prediction that to apply the result to the calculation of the rotation speed limit, which is favorable for the explanation of the observation.

References

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YU Yun-Wei and ZHENG Xiao-Ping. Bulk Viscosity of Strange Quark Matter at First-Order Perturbative QCD Approximation[J]. Chinese Physics C, 2004, 28(3): 258-261.

YU Yun-Wei and ZHENG Xiao-Ping. Bulk Viscosity of Strange Quark Matter at First-Order Perturbative QCD Approximation[J]. Chinese Physics C, 2004, 28(3): 258-261. shu

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Received: 2003-06-20
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

Bulk Viscosity of Strange Quark Matter at First-Order Perturbative QCD Approximation

YU Yun-Wei ^,
ZHENG Xiao-Ping

Corresponding author: YU Yun-Wei,

College of Physical Science and Technology,Central China Normal University,Wuhan 430079,China

Received Date: 2003-06-20
Accepted Date: 1900-01-01
Available Online: 2004-03-05

Abstract: Taking the thermodynamics potential for cold dense QCD in perturbation theory to the first order in coupling constant account, we calculate the bulk viscosity of strange quark matter(SQM), and find that the result is approximately 10 2 times than that of the ideal quark gas. In comparison with quasi-particle description model, we have the same result in order of magnitude. It is useful to improve the theory prediction that to apply the result to the calculation of the rotation speed limit, which is favorable for the explanation of the observation.