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The statistical-mechanical entropy of scalar field is calculated by using brick wall method and thin film brick-wall method in Gibbons-Maeda black hole spacetime. The entropy obtained from brick-wall method has two terms. One term is proportional to the event horizon area, and the proportional coefficient is 1/4 when the cutoff factor satisfies a suitable condition. The other term is logarithmic-divergent. The entropy obtained from thin film brick-wall method has only one term which is proportional to the event horizon area, and the logarithmic divergence vanishes.
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Keywords:
- brick-wall method/
- thin film brick-wall method/
- Gibbons-Maeda black hole/
- statistical-mechanical entropy
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] -
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19]
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