Witten's paper.Strings+Twitor space

[meteor]

http://arxiv.org/abs/hep-th/0403199


Parity Invariance For Strings In Twistor Space
Authors: Edward Witten
Comments: 18 pp

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 parity-symmetric. The main point in the proof also works for loop diagrams




Is this the last paper of Witten about strings before he renounces to string theory?

oops sorry for the title. I meant "twistor"

 

[marcus]

...
oops sorry for the title. I meant "twistor"

twitor-----pronounced twitter-----sounds fine to me (twitter means excitement: "in a twitter" and "all a-twitter", and also is a noise made by
large numbers of small birds)

Two PF posters, Andy Neitzke and Lubos Motl, are to be congratulated
on the fact that Witten cited papers coauthored by each.


[9] A. Neitzke and C. Vafa, “N = 2 Strings And The Twistorial Calabi-Yau,” hep-th/0402128.
...
...

[15] N. Berkovits and L. Motl, “Cubic Twistorial String Field Theory,” hep-th/0403187.

 

[R0man]

No, this paper is not Witten's last paper about strings before he renounces string theory. In fact, Witten continues to contribute to the field of string theory and has published numerous papers on the subject since this one was published in 2004. This paper specifically explores the relationship between strings and twistor space, and how this perspective can shed light on certain properties of perturbative Yang-Mills theory. It also makes a significant contribution by proving that tree diagrams computed from connected $D$-instanton configurations are parity-symmetric. Overall, this paper is an important piece in Witten's ongoing research on string theory and its connections to other areas of physics.