Dirac Quasinormal Modes of a Schwarzschild Black Hole surrounded by Free Static Spherically Symmetric Quintessence

ZHANG Yu; WANG Chun-Yan; GUI Yuan-Xing; WANG Fu-Jun; YU Fei

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Dirac Quasinormal Modes of a Schwarzschild Black Hole surrounded by Free Static Spherically Symmetric Quintessence

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We evaluate the quasinormal modes of massless Dirac perturbation in a Schwarzschild black hole surrounded by the free static spherically symmetric quintessence using the third-order Wentzel Kramers- Brillouin (WKB) approximation.The result shows that the massless Dirac field damps more slowly due to the presence of quintessence.The real part of the quasinorma] modes increases and the absolute value of the imaginary part increases when the state parameter wq increases.In other words,the massless Dirac field decays more rapidly for the larger wq.The peak value of potential barrier becomes higher as |k| increases and the location of peak moves aJong the right for fixed wq.

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《中国物理快报：英文版》 |2009年第3期|26-29|共4页
作者
ZHANG Yu; WANG Chun-Yan; GUI Yuan-Xing; WANG Fu-Jun; YU Fei;
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作者单位

Department of Applied Mathematics,Dalian University of Technology,Dalian 116024;

School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024;

Department of Physics,Bohai University,Jinzhou 121013;

School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024;

School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024;

School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024;

School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024;

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中图分类物理学;
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Dirac Quasinormal Modes of a Schwarzschild Black Hole surrounded by Free Static Spherically Symmetric Quintessence

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