(12.02.) Ambitwistor String Theory
Arthur Lipstein (Oxford U.)
12.02.2015 at 16:15
In this talk, I will describe ambitwistor strings, a family of chiral string theories which provide a natural generalization of the twistor-strings of Witten, Berkovits and Skinner to arbitrary dimensions. In general dimensions, their correlators give rise to the formulae for gravity and Yang-Mills amplitudes recently discovered by Cachazo, He and Yuan. In four dimensions, they give rise to new formulae for gravity and Yang-Mills amplitudes with any amount of supersymmetry. Ambitwsitor string theory also provides new insight into soft theorems for scattering amplitudes and their relationship to asymptotic symmetries.
Arnold Sommerfeld Center
Theresienstrasse 37
Room 348/349