Bulk Viscosity of Interacting Starnge Quark Matter and Damping of Strange Quark Star Vibration

ZHU Ming-Feng; LIU Guang-Zhou

Chinese Physics C> 2006, Vol. 30> Issue(S2) : 246-248

Bulk Viscosity of Interacting Starnge Quark Matter and Damping of Strange Quark Star Vibration

ZHU Ming-Feng ^, ,
LIU Guang-Zhou

Center for Theoretical Physics, Institute of Physics, Jilin University, Changchun 130021, China

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Abstract：
Bulk viscosity of interacting strange quark matter is calculated in the light of m_s dependent reaction rate of u+s←→d+u, and the extra terms come from the interaction between quarks and theomodynamic consistency are included. We find that the results were larger than previously assumed. The application to the damping time of the interacting strange quark matter shows that although the bulk viscosity becomes larger, the previous conclusion about the observation of the existence of strange stars is unchanged.

References

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ZHU Ming-Feng and LIU Guang-Zhou. Bulk Viscosity of Interacting Starnge Quark Matter and Damping of Strange Quark Star Vibration[J]. Chinese Physics C, 2006, 30(S2): 246-248.

ZHU Ming-Feng and LIU Guang-Zhou. Bulk Viscosity of Interacting Starnge Quark Matter and Damping of Strange Quark Star Vibration[J]. Chinese Physics C, 2006, 30(S2): 246-248. shu

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Received: 2006-10-18
Revised: 1900-01-01

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Bulk Viscosity of Interacting Starnge Quark Matter and Damping of Strange Quark Star Vibration

ZHU Ming-Feng ^,
LIU Guang-Zhou

Corresponding author: ZHU Ming-Feng,

Center for Theoretical Physics, Institute of Physics, Jilin University, Changchun 130021, China

Received Date: 2006-10-18
Accepted Date: 1900-01-01
Available Online: 2006-01-03

Abstract: Bulk viscosity of interacting strange quark matter is calculated in the light of m_s dependent reaction rate of u+s←→d+u, and the extra terms come from the interaction between quarks and theomodynamic consistency are included. We find that the results were larger than previously assumed. The application to the damping time of the interacting strange quark matter shows that although the bulk viscosity becomes larger, the previous conclusion about the observation of the existence of strange stars is unchanged.