Chinese Physics C > 2002, Vol. 26 > Issue(11): 1172-1177

Consistent Thermodynamics of SQM and EOS of Strange Stars in Quasi-Particle Description

YANG Shu-Hua^,,
ZHENG Xiao-Ping

Department of Physics, Central China Normal University, Wuhan 430079, China

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Abstract：
Taking the interactions between quarks into account, we study thermodynamics of strange quark matter system in the quasi-particle approximation with the result that an extra term should be added to the thermodynamic potential density considering the self-consistent condition. The equation of states turns out to be "softened" when applying the above thermodynamics to strange quark matter in strange stars, and this is consistent with the results of the mass chemical potential-dependent model. However, the quasi-particle description model indicates the dependence of medium effects on the coupling constant of strong interaction.

References

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YANG Shu-Hua and ZHENG Xiao-Ping. Consistent Thermodynamics of SQM and EOS of Strange Stars in Quasi-Particle Description[J]. Chinese Physics C, 2002, 26(11): 1172-1177.

YANG Shu-Hua and ZHENG Xiao-Ping. Consistent Thermodynamics of SQM and EOS of Strange Stars in Quasi-Particle Description[J]. Chinese Physics C, 2002, 26(11): 1172-1177. shu

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Received: 2001-12-24
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

Consistent Thermodynamics of SQM and EOS of Strange Stars in Quasi-Particle Description

YANG Shu-Hua^,
ZHENG Xiao-Ping

Corresponding author:YANG Shu-Hua,

Department of Physics, Central China Normal University, Wuhan 430079, China

Received Date:2001-12-24
Accepted Date:1900-01-01
Available Online:2002-11-05

Abstract:Taking the interactions between quarks into account, we study thermodynamics of strange quark matter system in the quasi-particle approximation with the result that an extra term should be added to the thermodynamic potential density considering the self-consistent condition. The equation of states turns out to be "softened" when applying the above thermodynamics to strange quark matter in strange stars, and this is consistent with the results of the mass chemical potential-dependent model. However, the quasi-particle description model indicates the dependence of medium effects on the coupling constant of strong interaction.