Speaker
Till Heckelbacher
(LMU Munich)
Description
In this talk we will analyse loop corrections to a conformally coupled scalar field with a quartic self-interaction in $(A)dS_4$ from a holographic perspective. First we will remark on the similarities and differences of quantum field theory in $AdS$ and $dS$. We will then calculate the quantum corrections to the four point function and give a formula for the anomalous dimensions of the dual double trace operators. The method we use is a direct evaluation of the corresponding Witten diagrams which is in contrast to the usual method using Mellin space techniques. We will conclude by comparing both methods. This talk is partially based on JHEP 02 (2021) 151
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Primary author
Till Heckelbacher
(LMU Munich)
