New N=1 Superconformal Field Theories in Four Dimensions from D-brane Probes
Ofer Aharony, Shamit Kachru, Eva Silverstein
Abstract
We present several new examples of nontrivial 4d N=1 superconformal field theories. Some of these theories exhibit exotic global symmetries, including non-simply laced groups (such as F4). They are obtained by studying threebrane probes in F-theory compactifications on elliptic Calabi-Yau threefolds. The geometry of the compactification encodes in a simple way the behavior of the gauge coupling and the Kähler potential on the Coulomb branch of these theories.
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