Surface operators in the Klebanov-Witten theory

TL;DR

This paper studies 1/2 BPS conformal surface operators in the Klebanov-Witten theory, proposing a gravity dual via D3-branes in AdS_5 x T^{1,1} and computing related correlation functions.

Contribution

It introduces a gravity dual description of surface operators in the Klebanov-Witten theory and calculates their correlation functions with chiral primary operators.

Findings

Proposed D3-brane configuration as gravity dual.

Preservation of supersymmetry matches between surface operator and D3-brane.

Computed correlation functions between surface operators and chiral primaries.

Abstract

We investigate 1/2 BPS conformal surface operators in the Klebanov-Witten theory. These surface operators preserve certain parts of the conformal symmetry and R-symmetry as well as half of the supersymmetry. We propose the gravity dual of the surface operator as a configuration of a D3-brane in AdS_5 x T^{1,1}. This D3-brane preserves the same amount of the supersymmetry as the surface operator. We also compute the correlation function of the surface operator and a chiral primary operator.