(1) Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai;(2) National Astronomical Observatories, Chinese Academy of Sciences, 100012 Beijing, P. R. China
Abstract:
The quantum entropies due to the scalar and Dirac fields are investigated in a pure de Sitter spacetime. The leading divergent terms in both cases are regularized by the Pauli-Villars scheme. It is shown that the explosive entropies can be renormalized according to the Bekenstein-Hawking formula.
