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Lorentz-breaking theory with higher derivatives in spinor sector
(2015)
We consider the two-point function of the gauge field in Lorentz-breaking theories with higher-derivative extension of the Dirac Lagrangian. We show that the Carroll-Field-Jackiw term naturally arises in this theory as a ...
General fluctuations of the heterotic pure spinor string on curved backgrounds
(2019)
The general fluctuations, in the form of vertex operators, for the heterotic superstring in the pure spinor formalism are considered. The case of a flat background is reviewed and the case of a curved case is studied. The ...
C Ambitwistor pure spinor string in a type II supergravity background
(2015)
We construct the ambitwistor pure spinor string in a general type II supergravity background in the semi-classical regime. Almost all supergravity constraints are obtained from nilpotency of the BRST charge and further ...
Vertex operators for the plane wave pure spinor string
(2018)
In this work we give an explicit construction for the vertex operators of massless states in the pure spinor superstring in a plane wave background. The construction is based on the observation that the full action can be ...