منابع مشابه
Adding flavour to twistor strings
Twistor string theory is known to describe a wide variety of field theories at tree– level and has proved extremely useful in making substantial progress in perturbative gauge theory. We explore the twistor dual description of a class of N = 2 UV–finite super–Yang– Mills theories with fundamental flavour by adding ‘flavour’ branes to the topological B–model on super-twistor space and comment on...
متن کاملTwistor theory at fifty: from contour integrals to twistor strings.
We review aspects of twistor theory, its aims and achievements spanning the last five decades. In the twistor approach, space-time is secondary with events being derived objects that correspond to compact holomorphic curves in a complex threefold-the twistor space. After giving an elementary construction of this space, we demonstrate how solutions to linear and nonlinear equations of mathematic...
متن کاملStrings in Twistor Superspace and Mirror Symmetry
We obtain the super-Landau-Ginzburg mirror of the A-twisted topological sigma model on a twistor superspace – the quadric in CP3|3 × CP3|3 which is a Calabi-Yau supermanifold. We show that the B-model mirror has a geometric interpretation. In a particular limit for one of the Kähler parameters of the quadric, we show that the mirror can be interpreted as the twistor superspace CP3|4. This agree...
متن کاملParity Invariance For Strings In Twistor Space
Topological string theory with twistor space as the target makes visible some otherwise difficult to see properties of perturbative Yang-Mills theory. But left-right symmetry, which is obvious in the standard formalism, is highly unclear from this point of view. Here we prove that tree diagrams computed from connected D-instanton configurations are paritysymmetric. The main point in the proof a...
متن کاملTwistor-Like Formulation of Heterotic Strings
In this talk new formulations of the Green–Schwarz heterotic strings in D dimensions that involve commuting spinors, are reviewed. These models are invariant under n–extended, world sheet supersymmetry as well as under N = 1, target space supersymmetry where n ≤ D − 2 and D = 3, 4, 6, 10. The world sheet supersymmetry replaces n components (and provides a geometrical meaning) of the κ–symmetry ...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2007
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2007/11/088