Let’s see if we just choose the first part in (???), how the entropy looks like, and it’s meanings. Schwarzschild black hole’s surface gravity is
κ=14M,
and β=1TH=2πκ=8πM, rH=2M is the event horizon, then the entropy is
S=2M360h.
If we choose the cutoff as
h=TH90=1720πM=190β,
then the entropy becomes
S=4πM2=πrH2=14A.
where A=4πrH2 is the area of the event horizon. The entropy is the Bekenstein-Hawking entropy.

发表回复

您的邮箱地址不会被公开。 必填项已用 * 标注