Entropy of the scalar field in general accelerating non-stationary black holes with electric charge and magnetic charge
一般加速带电带磁的动态黑洞中标量场的熵

Using tortoise coordinate transformation, Klein-Gordon field equation is simplified and thermal radiation temperature near the event horizon is obtained. Meanwhile, adopting thin film brick-wall model and regulating the cut-off parameter and the thin film's thickness properly, the entropy of thin film near the event horizon is acquired. The results show that the entropy of the black hole is proportional to the area of the event horizon.