Noncommutativity and Ramond-Ramond fields
Masud Chaichian, Dimitri Polyakov, Anca Tureanu
TL;DR
This paper investigates how constant B-fields induce noncommutativity in superstring theory, affecting Ramond fields, space-time fermions, and supersymmetry, and reveals new singularities and poles in scattering amplitudes.
Contribution
It demonstrates the impact of space-time noncommutativity on Ramond fields and scattering amplitudes, highlighting new singularities and poles with opposite GSO parities.
Findings
Noncommutativity causes extra singularities in spin field correlators.
It introduces additional poles in RR scattering amplitudes.
These poles have opposite GSO parities.
Abstract
We study the properties of the Ramond fields in superstring theory in the presence of a constant B-field and the subsequent implications of space-time noncommutativity for space-time fermions and space-time supersymmetry. We find that the noncommutativity of space-time coordinates leads to extra singularities in the spin field correlators and to appearance of the extra poles in the RR scattering amplitudes, carrying the opposite GSO parities.
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