NONCOMMUTATIVE SPACETIME EFFECT ON THE SLOW-ROLL PERIOD OF INFLATION

@article{Kim2005NONCOMMUTATIVESE,
  title={NONCOMMUTATIVE SPACETIME EFFECT ON THE SLOW-ROLL PERIOD OF INFLATION},
  author={Hungsoo Kim and Gil Sang Lee and Yun Soo Myung},
  journal={Modern Physics Letters A},
  year={2005},
  volume={20},
  pages={271-283}
}
We study how the noncommutative spacetime affects inflation. First we obtain the noncommutative power spectrum of the curvature perturbations produced during inflation in the slow-roll approximation. This is the explicit k-dependent power spectrum up to first order in slow-roll parameters e1, δ1 including the noncommutative parameter μ. In order to test the role of μ further, we calculate the noncommutative power spectrum using the slow-roll expansion. We find corrections which arise from the… 

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