منابع مشابه
Twistor origin of the superstring
After introducing a d=10 pure spinor λα, the Virasoro constraint ∂x∂xm = 0 can be replaced by the twistor-like constraint ∂x(γmλ)α = 0. Quantizing this twistorlike constraint leads to the pure spinor formalism for the superstring where the fermionic superspace variables θα and their conjugate momenta come from the ghosts and antighosts of the twistor-like constraint.
متن کاملOrigin of Pure Spinor Superstring
The pure spinor formalism for the superstring, initiated by N. Berkovits, is derived at the fully quantum level starting from a fundamental reparametrization invariant and super-Poincaré invariant worldsheet action. It is a simple extension of the Green-Schwarz action with doubled spinor degrees of freedom with a compensating local supersymmetry on top of the conventional κ-symmetry. Equivalenc...
متن کاملCalculation of Green-schwarz Superstring Amplitudes Using the N=2 Twistor-string Formalism
The manifestly SU(4)xU(1) super-Poincaré invariant free-field N=2 twistor-string action for the ten-dimensional Green-Schwarz superstring is quantized using standard BRST methods. Unlike the light-cone and semi-light-cone gauge-fixed Green-Schwarz actions, the twistor-string action does not require interaction-point operators at the zeroes of the light-cone momentum, ∂ z x + , which complicated...
متن کاملA twistor formulation of the non-heterotic superstring with manifest worldsheet supersymmetry
We propose a new formulation of the D = 3 type II superstring which is manifestly invariant under both target-space N = 2 supersymmetry and worldsheet N = (1, 1) super reparametrizations. This gives rise to a set of twistor (commuting spinor) variables, which provide a solution to the two Virasoro constraints. The worldsheet supergravity fields are shown to play the rôle of auxiliary fields. † ...
متن کاملPalatial twistor theory and the twistor googly problem.
A key obstruction to the twistor programme has been its so-called 'googly problem', unresolved for nearly 40 years, which asks for a twistor description of right-handed interacting massless fields (positive helicity), using the same twistor conventions that give rise to left-handed fields (negative helicity) in the standard 'nonlinear graviton' and Ward constructions. An explicit proposal for r...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2015
ISSN: 1029-8479
DOI: 10.1007/jhep03(2015)122