A graviton propagator for inflation
نویسندگان
چکیده
منابع مشابه
A graviton propagator for inflation
We construct the scalar and graviton propagator in quasi de Sitter space up to first order in the slow roll parameter ǫ ≡ −Ḣ/H2. After a rescaling, the propagators are similar to those in de Sitter space with an ǫ correction to the effective mass. The limit ǫ → 0 corresponds to the E(3) vacuum that breaks de Sitter symmetry, but does not break spatial isotropy and homogeneity. The new propagato...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2008
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/25/5/055007