55 citations · 120 across the 4 of their papers we have counts for
8 papers · 1 filter
Superconformal spaces and implications for superstrings
Machiko Hatsuda, Warren Siegel
We clarify some properties of projective superspace by using a manifestly superconformal notation. In particular, we analyze the N=2 scalar multiplet in detail, including its actio…
On Semiclassical Limits of String States
Jose J. Blanco-Pillado, Alberto Iglesias, Warren Siegel
We explore the relation between classical and quantum states in both open and closed (super)strings discussing the relevance of coherent states as a semiclassical approximation. Fo…
String interactions on the random lattice
Haidong Feng, Yu-tin Huang, Warren Siegel
We combine two partons on a random lattice as a vector state. In the ladder approximation, we find that such states have 1/p^2 propagators (after tuning the mass to vanish). We als…
Untwisting the twistor superstring
Warren Siegel
The twistor superstring, which describes N=4 super Yang-Mills trees, is taken off-shell (for loops) by generalizing Penrose twistors (which describe on-shell momenta) to Atiyah-Dri…
Stringy gravity at short distances
W. Siegel
Analysis of string interactions indicates a weakening of gravity at the string length scale, thus avoiding black holes and their singularities.
Light-Cone Gauge for N=2 Strings
Olaf Lechtenfeld, Warren Siegel
Covariant quantization of self-dual strings in 2+2 flat dimensions reduces them to their zero modes, a consequence of extended world-sheet supersymmetry. We demonstrate how to arri…