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变加速直线运动黑洞的温度和Dirac场的熵
Entropy of Dirac field in a rectilinearly nonuniformly accelerating Kinnersley black hole
【摘要】 采用Tortoise坐标变换,约化视界面附近Dirac场方程,得到Kinnersley黑洞的Hawking温度.用薄膜brick-wall模型,计算Kinnersley黑洞的熵,得到通过选择适当的截断因子和薄层,在视界面附近薄层上的熵就是黑洞的熵,结果表明黑洞熵与视界面积成正比.
【Abstract】 Using the Tortoise coordinate transformation and the Dirac field equation near the event horizon,the Hawking temperature of Kinnersley black hole is obtained.Meanwhile,adopting thin film brick-wall model,the entropy of Kinnersley black hole is calculated.The entropy near the event horizon is shown to be the entropy of black hole by regulating the cut-off parameter and the thin film’s thickness properly.The results show that the entropy of the black hole is proportional to the area of the event horizon.
【关键词】 Kinnersley黑洞;
Hawking温度;
薄膜brick-wall模型;
熵;
【Key words】 Kinnersley black hole; Hawking temperature; thin film brick-wall model; entropy;
【Key words】 Kinnersley black hole; Hawking temperature; thin film brick-wall model; entropy;
【基金】 重庆市教委项目(批准号:KJ071111)资助的课题.~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2007年11期
- 【分类号】P145.8
- 【下载频次】54