Friday, September 28, 2012

1209.6060 (C. Adam et al.)

BPS bounds in supersymmetric extensions of K field theories    [PDF]

C. Adam, J. M. Queiruga, J. Sanchez-Guillen, A. Wereszczynski
We demonstrate that in the supersymmetric extensions of a class of generalized (or K) field theories introduced recently, the static energy satisfies a BPS bound in each topological sector. Further, the corresponding soliton solutions saturate the bound. We also find strong indications that the BPS bound shows up in the SUSY algebra as a central extension, as is the case in the well-known supersymmetric field theories with standard kinetic terms.
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