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The Exact Superconformal R-Symmetry Extremizes Z
Daniel L. Jafferis
The three sphere partition function, Z, of three dimensional theories with four supercharges and an R-symmetry is computed using localization, resulting in a matrix integral over t…
Bound state transformation walls
Evgeny Andriyash, Frederik Denef, Daniel L. Jafferis +1
In four dimensional N=2 supergravity theories, BPS bound states near marginal stability are described by configurations of widely separated constituents with nearly parallel centra…
Wall-crossing from supersymmetric galaxies
Evgeny Andriyash, Frederik Denef, Daniel L. Jafferis +1
We give an elementary physical derivation of the Kontsevich-Soibelman wall crossing formula, valid for any theory with a 4d N=2 supergravity description. Our argument leads to a sl…
Massive type IIA string theory cannot be strongly coupled
Ofer Aharony, Daniel Jafferis, Alessandro Tomasiello +1
Understanding the strong coupling limit of massive type IIA string theory is a longstanding problem. We argue that perhaps this problem does not exist; namely, there may be no stro…