What the study found
The study proposes solutions in massive Type IIA supergravity as duals of co-dimension 2 monodromy defects in 6d (1,0) conformal field theories and in the 5d Sp(N) fixed point theory. The authors also construct new co-dimension 2 monodromy defects in 6d and 5d conformal field theories compactified on Riemann surfaces and/or spindles.
Why the authors say this matters
The authors say these solutions provide holographic descriptions of defects in higher-dimensional quantum field theories. They also suggest that, for 3d defects, the entanglement entropy can be written as a linear combination of the free energy and conformal weight of the defect.
What the researchers tested
The researchers studied solutions to massive Type IIA supergravity and related them to defects realized in NS5-D6-D8 brane systems and in the 5d Sp(N) fixed point theory. They first worked with 7d U(1) gauged supergravity and 6d U(1) 2 gauged supergravity, then uplifted the solutions to massive Type IIA supergravity using known consistent truncations.
What worked and what didn't
For the 6d case, the solutions asymptote locally to the maximally supersymmetric AdS 7 vacuum away from the defects. For the 5d case, the solutions asymptote to the maximally supersymmetric AdS 6 vacuum, and the authors report evidence that the 3d defect entanglement entropy can be written as a linear combination of the defect free energy and conformal weight.
What to keep in mind
The abstract does not describe detailed limitations or failure cases. The summary is limited to the specific defect systems and compactification settings named in the paper.
Key points
- The paper proposes massive Type IIA supergravity solutions as duals of co-dimension 2 monodromy defects.
- The defects are studied in 6d (1,0) conformal field theories and in the 5d Sp(N) fixed point theory.
- The authors uplift solutions from 7d and 6d gauged supergravity to massive Type IIA supergravity.
- They provide evidence that 3d defect entanglement entropy may be a linear combination of defect free energy and conformal weight.
- They also construct new co-dimension 2 monodromy defects on Riemann surfaces and/or spindles.
Disclosure
- Research title:
- Monodromy defects are constructed in massive Type IIA settings
- Authors:
- Andrea Conti, Yolanda Lozano, C. A. Rosen
- Institutions:
- Universidad de Oviedo, Universidad de Oviedo, University of Crete
- Publication date:
- 2026-04-22
- OpenAlex record:
- View
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