| Gibbons-Maeda黑洞背景下自旋场的量子熵 |
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| 引用本文： | 刘晓莹,任凤竹. Gibbons-Maeda黑洞背景下自旋场的量子熵[J]. 河南大学学报(自然科学版), 2006, 36(4): 19-23 |
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| 作者姓名： | 刘晓莹 任凤竹 |
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| 作者单位： | 湛江师范学院,物理系,广东,湛江,524048;河南大学,物理与信息光电子学院,河南,开封,475001 |
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| 摘 要： | 用brick-wall模型研究了Gibbons-Maeda黑洞背景下自旋场的量子熵.结果表明量子熵可分为两部分,即时空几何依赖部分和场的自旋依赖部分.时空几何依赖部分的线性发散项可化为正比于事件视界面积的形式,对数发散项与黑洞本身的性质有关;自旋依赖部分除了与黑洞本身的性质有关外还与与自旋场的自旋有关,不同的自旋场对黑洞熵的影响是不同的.
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| 关 键 词： | G-M黑洞 量子熵 自旋 |
| 文章编号： | 1003-4978（2006）04-0019-05 |
| 收稿时间： | 2006-02-16 |
| 修稿时间： | 2006-02-16 |
The Quantum Entropy of Spin Fields in Gibbons-Maeda Black Hole Background |
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| LIU Xiao-Ying,REN Feng-zhu. The Quantum Entropy of Spin Fields in Gibbons-Maeda Black Hole Background[J]. Journal of Henan University(Natural Science), 2006, 36(4): 19-23 |
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| Authors: | LIU Xiao-Ying REN Feng-zhu |
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| Abstract: | The free energy and entropy of spin fields are calculated via brick-wall model in Gibbons-Maeda black hole background.It is shown that the quantum entropy includes two parts: The fist part is linearly and logarithmically divergent term,where the linearly divergent term can reduce to the form proportional to the event horizon area,the logarithmically divergent term relates to the characteristics of the black hole;the second part is logarithmically divergent term which also depends on the spin of the fields.The different spin fields have the different effect on the entropy. |
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| Keywords: | Gibbons-Maeda black hole quantum entropy spin fields |
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