5,489 research outputs found
D=(0|2) Dirac--Maxwell--Einstein Theory as a Way for Describing Supersymmetric Quartions
Drawing an analogy with the Dirac theory of fermions interacting with
electromagnetic and gravitational field we write down supersymmetric equations
of motion and construct a superfield action for particles with spin 1/4 and 3/4
(quartions), where the role of quartion momentum in effective
(2+1)--dimensional space-time is played by an abelian gauge superfield
propagating in a basic two-dimensional Grassmann-odd space with a cosmological
constant showing itself as the quartion mass. So, the (0|2) (0 even and 2 odd)
dimensional model of quartions interacting with the gauge and gravitational
field manifests itself as an effective (2+1)-dimensional supersymmetric theory
of free quartions.Comment: 16 pages, LaTeX, report DFPD/93/TH/4
A landscape of non-supersymmetric AdS vacua on coset manifolds
We construct new families of non-supersymmetric sourceless type IIA AdS4
vacua on those coset manifolds that also admit supersymmetric solutions. We
investigate the spectrum of left-invariant modes and find that most, but not
all, of the vacua are stable under these fluctuations. Generically, there are
also no massless moduli.Comment: 20 pages, 11 figures, v2: added some clarifications, references, v3:
corrections addressing comments refere
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