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利用Gilkey的结果,本文求得了标量场、旋量场和矢量场的格林函数的DeWitt-Schwinger展开中的α3系数,并由此求得了de Sitter时空中这些场的真空能量张量在大质量下的近似。By applying Gilkey's result, we obtain the coefficient α3 in DeWitt-Schwinger proper time expansion of the Green function for scalar, spinor and vector fields respectively, so finally we succeed in obtaining the renormalized vacuum stress-energy tensor for deSitter space-time in large mass approximation.
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