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- W4379014763 abstract "de-Sitter(dS) space allows for a generalized class of vacua, known as $alpha-$vacua, described by some parameters. The Bunch-Davies (BD) vacua is a point in this parameter space. The cosmological correlation function is mostly discussed in BD vacuum in four dimensions and can be interpreted as $CFT_3$ correlation function of certain operators. However, the correlation function in $alpha-$vacua takes a much more complicated form. In this paper, we give a simple prescription to compute correlation function in $alpha-$vacua in terms of correlation function of BD vacuum. We also show that the correlation function in the $alpha-$vacua can be related to three-dimensional CFT correlation functions if we relax the requirement of consistency with OPE limit. Relaxation of consistency with OPE limit can be naturally achieved in momentum space." @default.
- W4379014763 created "2023-06-02" @default.
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- W4379014763 date "2023-05-15" @default.
- W4379014763 modified "2023-09-26" @default.
- W4379014763 title "A CFT interpretation of cosmological correlation functions in α−vacua in de-Sitter space" @default.
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- W4379014763 doi "https://doi.org/10.1007/jhep05(2023)111" @default.
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