Entropy and black hole horizons
نویسنده
چکیده
The standard approach of counting the number of eigenmodes of N scalar fields near the horizon is used as a basis to provide a simple statistical mechanical derivation of the black hole entropy in two and four dimensions. The Bekenstein formula S = A 4Gh̄ and the two-dimensional entropy S = 2M/λh̄ are naturally obtained (up to a numerical constant of order 1). This approach provides an explanation on why the black hole entropy is of order 1/h̄ and why it is independent of the number of field-theoretical degrees of freedom.
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