| Statistical Entropy of an Acoustic Black Hole in Bose–Einstein Condensates |
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| 引用本文： | 马孟森,赵惠华,赵仁.Statistical Entropy of an Acoustic Black Hole in Bose–Einstein Condensates[J].理论物理通讯,2013(12):695-698. |
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| 作者姓名： | 马孟森 赵惠华 赵仁 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos.11247261,11075098,11205097;the Doctoral Sustentation Foundation of Shanxi Datong University(2011-B-03) |
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| 摘 要： | The entanglement entropy of an acoustic black hole in a Bose-Einstein condensates （BEC） is derived, which is associated with the phonons generated via the Hawking mechanism in a sonic hole. Considering the dispersion relation of a BEC, we recalculate the entanglement entropy of the acoustic black hole by means of statistical method in two limits. We find that the entropy is still proportional to the area of event horizon, but with a coefficient dependent on the infrared cutoff.
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| 关 键 词： | 爱因斯坦凝聚 统计熵 黑洞 声学 玻色 色散关系 统计方法 BEC |
Statistical Entropy of an Acoustic Black Hole in Bose-Einstein Condensates |
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| MA Meng-Sen ZHAO Hui-Hua,and ZHAO Ren.Statistical Entropy of an Acoustic Black Hole in Bose-Einstein Condensates[J].Communications in Theoretical Physics,2013(12):695-698. |
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| Authors: | MA Meng-Sen ZHAO Hui-Hua and ZHAO Ren |
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| Abstract: | acoustic black holes, entanglement entropy, Bose-Einstein condensates |
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| Keywords: | acoustic black holes entanglement entropy Bose-Einstein condensates |
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