84 citations · 160 across the 7 of their papers we have counts for
7 papers
Heterotic '-corrections in Double Field Theory
Oscar A. Bedoya, Diego Marques, Carmen Nunez
We extend the generalized flux formulation of Double Field Theory to include all the first order bosonic contributions to the expansion of the heterotic string low energy effe…
A New Proposal for the Picture Changing Operators in the Minimal Pure Spinor Formalism
Oscar A. Bedoya, Humberto Gomez
Using a new proposal for the "picture lowering" operators, we compute the tree level scattering amplitude in the minimal pure spinor formalism by performing the integration over th…
Quantum Current Algebra for the Superstring
Oscar A. Bedoya, Dafni Z. Marchioro, Daniel L. Nedel +1
The sigma model describing the dynamics of the superstring in the background can be constructed using the coset . A basic set of…
GGI Lectures on the Pure Spinor Formalism of the Superstring
Oscar A. Bedoya, Nathan Berkovits
Notes taken by Oscar A. Bedoya of lectures of Nathan Berkovits in June 2009 at the Galileo Galilei Institute School "New Perspectives in String Theory". Topics include the pure spi…
Superstring Sigma Model Computations Using the Pure Spinor Formalism
Oscar A. Bedoya
In this thesis are presented two aplications of the sigma model for the superstring in the pure spinor formulation. The first aplication concerns the computation of the one-loop co…
Yang-Mills Chern-Simons Corrections From the Pure Spinor Superstring
Oscar A. Bedoya
Nilpotency of the pure spinor BRST operator in a curved background implies superspace equations of motion for the background. By computing one-loop corrections to nilpotency for th…