Solutions describing holographic surface defects in D = 5, N = 4 gauged supergravity theories are constructed. It is shown that a surface defect solution in pure Romans' gauged supergravity is singular. Adding a single vector multiplet allows for the construction of a non-singular solution. The on-shell action and one point functions of operators in the presence of the defect are computed using holographic renormalization.
We construct solutions of four-dimensional N = 2 gauged supergravity coupled to vector multiplets which are holographically dual to superconformal line defects. For the gauged STU and the SU(1, n)/U(1) × SU(n) coset models, we use the solutions to calculate holographic observables such as the expectation value of the defect and one-point functions in the presence of the defect.
We consider conformal defect solutions in four dimensional N = 2 gauged supergravity. These solutions are constructed as a warped product of AdS 2 × S 1 over an interval with non-trivial electric and magnetic fields. We show for minimal gauged supergravity and for gauged supergravity with vector multiplets and abelian gauging that supersymmetric defect solutions are only possible when the geometry has a conical defect in either the bulk or the boundary metric. arXiv:1811.04166v1 [hep-th]
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