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0111 · Sep 200519922001200920172026
5 results for supertwistors

We show that supertwistor spaces constructed as a Kahler quotient of a hyperkahler cone (HKC) with equal numbers of bosonic and fermionic coordinates are Ricci-flat, and hence, Calabi-Yau. We study deformations of the supertwistor space induced from deformations of the HKC. We also discuss general infinitesimal deforma…

2005-09-28abs ↗pdf ↗

We give holomorphic Chern-Simons-like action functionals on supertwistor space for self-dual supergravity theories in four dimensions, dealing with N=0,...,8 supersymmetries, the cases where different parts of the R-symmetry are gauged, and with or without a cosmological constant. The gauge group is formally the group …

2007-06-13abs ↗pdf ↗

Superconformal geometries discussed in various spacetime dimensions using local supertwistor bundles.

problem Discussing superconformal geometries in different spacetime dimensions.
method Using local supertwistor bundles over standard superspace, showing gauges where scale parts of the connection and curvature vanish, and imposing constraints to reduce field numbers.
result Reduced field numbers to those of minimal off-shell conformal supergravity multiplets by imposing constraints.

We establish a Penrose-Ward transform yielding a bijection between holomorphic principal 2-bundles over a twistor space and non-Abelian self-dual tensor fields on six-dimensional flat space-time. Extending the twistor space to supertwistor space, we derive sets of manifestly N=(1,0) and N=(2,0) supersymmetric non-Abeli…

2012-05-14abs ↗pdf ↗