A scattered approach to twistors
Siva
A glance at Yang-Mills scattering amplitudes and some of the driving philosophy behind recent developments. An introduction to twistors, from a practical viewpoint. Electromagnetism formulated using spinors.
References
- Twistor Primer http://users.ox.ac.uk/~tweb/00004/
- Witten's lectures at PiTP 2004 http://www.sns.ias.edu/pitp/2004/schedule.html, Witten's paper on Twistor Strings http://arxiv.org/abs/hep-th/0312171