186 citations · 958 across the 45 of their papers we have counts for
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A note on gauge-covariant vertex operators of the ambitwistor string
Osvaldo Chandia
We construct gauge-covariant unintegrated vertex operators in an antighost-independent subcomplex of the bosonic ambitwistor string. For a linearized gauge field, a world-sheet gho…
A note on conserved worldsheet supercharges in heterotic pure spinor superstring
Osvaldo Chandia, Brenno Carlini Vallilo
We study conserved worldsheet charges associated with spacetime supersymmetry in heterotic pure-spinor superstrings on curved ten-dimensional superspace backgrounds. Requiring BRST…
A note on the type II superstring vertex operators in the B-RNS-GSS formalism
Osvaldo Chandia
We construct integrated and unintegrated vertex operators for the type II superstring using the B-RNS-GSS formalism. The construction is done in flat spacetime background for both…
Compactifications of Type II Supergravities in Superspace
Osvaldo Chandia, Brenno Carlini Vallilo
We propose a way to describe compactifications of Type II supergravities with fluxes directly from superspace. The superspace used is the one that arises naturally from the pure sp…
B-RNS-GSS Type II superstring in Ramond-Ramond backgrounds
Osvaldo Chandia, João Gomide
The B-RNS-GSS formalism containing both RNS and GS worldsheet variables is extended for the description of the Type II superstring in curved backgrounds. The BRST charge of the the…
B-RNS-GSS heterotic string in curved backgrounds
Nathan Berkovits, Osvaldo Chandia, Joao Gomide +1
The recently established B-RNS-GSS formalism is extended for the description of the heterotic superstring in curved backgrounds. We propose a generalized action and BRST charge def…