Black hole entropy inside and outside the brick wall

作者：Liu WB^*; Han YW; Zhou ZA

来源：International Journal of Modern Physics A, 2003, 18(15): 2681-2687.

DOI：10.1142/S0217751X03013673

• black hole
• entropy
• brick-wall
• generalized uncertainty relation
• event horizon

Applying the generalized uncertainty relation to the calculation of the free energy and entropy of a black hole inside the brick wall, the entropy proportional to the horizon area is derived from the contribution of the vicinity of the horizon. This is compared with the entropy calculated via the original brick wall model. The entropy given by the original brick wall model comes from the outside of the brick wall seemingly. The inside result using generalized uncertainty relation is similar to the outside result using original uncertainty relation, and the divergence inside the brick wall disappears. It is apparent that the cutoff is something related to the quantum theory of gravity.

• 出版日期2003-6-20
• 单位南宁师范大学; 北京师范大学