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A<sc>bstract</sc> We explore the symmetry structure of Type II Little String Theories and their T-dualities. We construct these theories both from the bottom-up perspective starting with seed Superconformal Field Theories, and from the top-down using F-/M-theory. By exploiting anomaly inflow and unitarity of the LST worldsheet theory, we derive strong conditions on the possible 6D bulk theories and their flavor algebras. These constraints continue to apply if gravity is coupled to the theory. We also study the higher form symmetry structure of these theories and show how they get exchanged under T-duality. Finally, we comment on seemingly consistent bottom-up Little String Theories that cannot be constructed from the top-down approach.
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A Comment on Effective Field Theories of Flux Vacua
Abstract We discuss some basic aspects of effective field theory applied to supergravity theories which arise in the low‐energy limit of string theory. Our discussion is particularly relevant to the effective field theories of no‐scale supergravities that break supersymmetry, including those that appear in constructing de Sitter solutions of string theory.
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- Award ID(s):
- 1720397
- PAR ID:
- 10080694
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Fortschritte der Physik
- Volume:
- 67
- Issue:
- 1-2
- ISSN:
- 0015-8208
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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