The holographic contributions to the sphere free energy

Abstract

Abstract

We study which bulk couplings contribute to the S3 free energy F(

m

$$ \mathfrak{m} $$ ) of three-dimensional

N

$$ \mathcal{N} $$ = 2 superconformal field theories with holographic duals, potentially deformed by boundary real-mass parameters m. In particular, we show that F(

m

$$ \mathfrak{m} $$ ) is independent of a large class of bulk couplings that include non-chiral F-terms and all D-terms. On the other hand, in general, F(

m

$$ \mathfrak{m} $$ ) does depend non-trivially on bulk chiral F-terms, such as prepotential interactions, and on bulk real-mass terms. These conclusions can be reached solely from properties of the AdS super-algebra,

osp

$$ \mathfrak{osp} $$ (2|4). We also consider massive vector multiplets in AdS, which in the dual field theory correspond to long single-trace superconformal multiplets of spin zero. We provide evidence that F(

m

$$ \mathfrak{m} $$ ) is insensitive to the vector multiplet mass and to the interaction couplings between the massive vector multiplet and massless ones. In particular, this implies that F(

m

$$ \mathfrak{m} $$ ) does not contain information about scaling dimensions or OPE coefficients of single-trace long scalar

N

$$ \mathcal{N} $$ = 2 superconformal multiplets.