Entropy of Neutrino Field in Kerr—Newman—de Sitter Space—time |
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作者姓名: | GAOChang-Jun SHENYou-Gen |
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作者单位: | ShanghaiAstronomicalObservatory,ChineseAcademyofSciences,Shanghai200030 |
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摘 要: | By using the improved brick wall model,we regard the two null horizons in kerr-Newman-de Sitter space-time as two independent thermal equilibrium systems and we calculate the entropies of both horizons due to neutrino field.We propose that the so-called“superradiant”mode cannot be considered because fermion fields does not display supperradiance.In fact,the nonsuperradiant part does exactly show the expected area-law entropy.Moreover,our cut-offε,which does not require an angular cut-off,is independent of angle θ.
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关 键 词: | 中微子天文学 熵 黑洞 时空关系 |
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