The SU(1|2) and SU(2|2) Sectors from Superstrings in AdS5 x S5

Details The SU(1|2) and SU(2|2) Sectors from Superstrings in AdS5 x S5 The SU(1|2) and SU(2|2) Sectors from Superstrings in AdS5 x S5

2006-04-03

arxiv.org/abs/hep-th/0604008v1

JHEP 0608:028,2006

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, LaTeX, no figures

Scientific paper

10.1088/1126-6708/2006/08/028

For the \kappa-symmetry gauge fixed superstring action in AdS_5 x S^5 we consider the fermionic fluctuations over a circular bosonic string background with two angular momenta and two winding numbers in S^5. The SU(2)-type redefinitions of fermionic fields and the first-string limit generate a truncated fermionic action for the SU(1|2) sector. It is expressed in a two-dimensional Lorentz-invariant form of a massive Dirac fermion and the plane-wave spectrum for the fermionic excitations is derived. The fermionic spectrum for the SU(2|2) sector is also analyzed.

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