ENTROPY OF THE DIRAC FIELD IN SCHWARZSCHILD BLACK HOLE
Schwarzschild黑洞背景下Dirac场的熵

By using of the brick-wall method,we calculate the free energy and the entropy of Dirac spinor field in Schwarzschild black hole-It shows that the entropy of Dirac field is proportional to the area of black hole horizon and the entropy of Dirac field is 7/2 times that of Klein-Gordon field-