Gauging Supergravity in Three Dimensions Eric Bergshoeff based on collaborations with M. de Roo, O. Hohm, D. Roest, H. Samtleben and E. Sezgin Vienna, April University of Groningen
From SUGRA to (conformal) SUSY Brane physics: supersymmetry in p+1 dimensions Multiple D2-branes: supersymmetric Yang-Mills Multiple M2 branes : conformal SUSY in D=3 dimensions Bagger, Lambert; Gustavsson (2008) Why CFT in Three Dimensions? de Roo, Hohm, Roest + E.B.
What is known about ? New superconformal gaugings (BLG) and (ABJM) Massive deformations Gomis, Salim, Passerini; Hosomichi, Lee, Lee Non-conformal gaugings (or Lorentzian 3-algebras) Gomis, Milanesi, Russo;Benvenuti, Rodriguez-Gomez, Tonni, Verlinde; Ho, Imamura, Matsuo; Bandres, Lipstein, Schwarz; Cecotti, Sen
Gauged Supergravity in Three Dimensions Nicolai, Samtleben (2001); de Wit, Herger, Samtleben (2003)
The Embedding Tensor The embedding tensor determines which subgroup is gauged and which gauge vectors are used Nicolai, Samtleben (2001), Schwarz (2004) Puzzle: no vectors left for (conformal) gauging! Resolution: add YM CS action duality relations Nicolai, Samtleben (2001)
Non-Abelian Duality Nicolai, Samtleben; de Wit, Herger, Samtleben
Constraints The embedding tensor satisfies linear and quadratic constraints due to supersymmetry and gauge invariance
Linear Constraints
The Global Limit
Three types of Gaugings
Conformal Gaugings
Solving the Constraints via SUSY In this way the D=3 superconformal gaugings can be classified The linear constraints can be solved by mapping the problem to the classification of Lie superalgebras Gaiotto, Witten; Hosomichi, Lee, Park The quadratic constraints are solved by using invariant tensors
Superconformal Gaugings BLG ABJM Hohm, Roest, Samtleben, Sezgin + E.B.
Non-conformal Gaugings Gomis, Milanesi, Russo;Benvenuti, Rodriguez-Gomez, Tonni, Verlinde; Ho, Imamura, Matsuo; Bandres, Lipstein, Schwarz; Cecotti, Sen Equivalent to wrong-sign kinetic terms (Lorentzian 3-algebras)
Massive Deformations SUSY algebra can have non-central terms (in D=3 only) Nahm (1978) Puzzle: D=3 scalar multiplet with half-maximal supersymmetry? Gomis, Salim, Passerini; Hosomichi, Lee, Lee
Non-central Charges
Supermultiplets
A Realization As mass spectrum of bosonic and fermionic fluctuations around Minkowski vacuum of maximal gauged supergravity with gauge group Fischbacher, Nicolai, Samtleben (2002) Hohm, E.B.
Summary non-trivial worldvolume/target space when gauging isometries of hypercomplex/hyper-K ähler manifold Cecotti, Samtleben, Sezgin + E.B., in preparation Only massive deformations, no interacting gauge theories new superconformal CS gaugings
Open Questions Are there more general gaugings in BLG model ? What about massive sugra ? What about multiple M5-branes ?