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Spectrum generating algebra for the pure spinor superstring
(Springer, 2014-10-03)
In this work, a supersymmetric DDF-like construction within the pure spinor formalism is presented. Starting with the light-cone massless vertices, the creation/annihilation algebra is derived in a simple manner, enabling ...
Notes on the pure spinor b ghost
(2013-08-19)
In this work, a particular BRST-exact class of deformations of the b ghost in the non-minimal pure spinor formalism is investigated and the impact of this construction in the N= 2 ĉ = 3 topological string algebra is analysed. ...
Notes on the pure spinor b ghost
(2013-08-19)
In this work, a particular BRST-exact class of deformations of the b ghost in the non-minimal pure spinor formalism is investigated and the impact of this construction in the N= 2 ĉ = 3 topological string algebra is analysed. ...
A construction of integrated vertex operator in the pure spinor sigma-model in AdS(5) x S-5
(Springer, 2013-11-14)
Vertex operators in string theory me in two varieties: integrated and unintegrated. Understanding both types is important for the calculation of the string theory amplitudes. The relation between them is a descent procedure ...
On the N=4, d=4 pure spinor measure factor
(Springer, 2015-03-25)
In tins work, we obtain a simple measure factor for the lambda and theta zero-mode integrations in the pure-spinor formalism in the context of an N = 4, d = 4 theory. We show that the measure can be defined unambiguously ...
Normal form of nilpotent vector field near the tip of the pure spinor cone
(2021-07-01)
Pure spinor formalism implies that supergravity equations in space-time are equivalent to the requirement that the worldsheet sigma-model satisfies certain properties. Here we point out that one of these properties has a ...
Pure spinor vertex operators in Siegel gauge and loop amplitude regularization
(Int School Advanced Studies, 2009-07-01)
Since the b ghost in the pure spinor formalism is a composite operator depending on non-minimal variables, it is not trivial to impose the Siegel gauge condition b(0)V = 0 on BRST-invariant vertex operators. Using the ...
Pure spinor vertex operators in Siegel gauge and loop amplitude regularization
(Int School Advanced Studies, 2009-07-01)
Since the b ghost in the pure spinor formalism is a composite operator depending on non-minimal variables, it is not trivial to impose the Siegel gauge condition b(0)V = 0 on BRST-invariant vertex operators. Using the ...
Decoupling of unphysical states in the minimal pure spinor formalism II
(Int School Advanced Studies, 2013)