88 citations · 341 across the 9 of their papers we have counts for
9 papers · 1 filter
Left-handed string and CHY amplitude at one loop
Yuqi Li, Warren Siegel
We propose a generalized left-handed (chiral) gauge choice for the genus one Riemann surface, realized through a singular gauge transformation of worldsheet coordinates. The transf…
Covariant field theory for self-dual strings
N. Berkovits, W. Siegel
We give a gauge and manifestly SO(2,2) covariant formulation of the field theory of the self-dual string. The string fields are gauge connections that turn the super-Virasoro gener…
T-duality invariance in random lattice strings
W. Siegel
Preserving the T-duality invariance of the continuum string in its random lattice regularization uniquely determines the random matrix model potential. For D=0 the duality transfor…
Actions for QCD-like strings
W. Siegel
We introduce a random lattice corresponding to ordinary Feynman diagrams, with 1/p-squared propagators instead of the Gaussians used in the usual strings. The continuum limit defin…
Randomizing the Superstring
W. Siegel
We find a simpler formulation of the Green-Schwarz action, for which the Wess-Zumino term is the square of supersymmetric currents, like the rest of the action. On a random lattice…
Hidden Gravity in Open-String Field Theory
W. Siegel
We clarify the nature of the graviton as a bound state in open-string field theory: The flat metric in the action appears as the vacuum value of an OPEN string field. The bound sta…
Green-Schwarz Formulation of Self-Dual Superstring
W. Siegel
The self-dual superstring has been described previously in a Neveu-Schwarz-Ramond formulation with local N=2 or 4 world-sheet supersymmetry. We present a Green-Schwarz-type formula…
Self-Dual N=8 Supergravity as Closed N=2(4) Strings
W. Siegel
As open N=2 or 4 strings describe self-dual N=4 super Yang-Mills in 2+2 dimensions, the corresponding closed (heterotic) strings describe self-dual ungauged (gauged) N=8 supergravi…
The N=4 string is the same as the N=2 string
W. Siegel
We redo the quantization of the N=4 string, taking into account the reducibility of the constraints. The result is equivalent to the N=2 string, with critical dimension D=4 and sig…