# Generic estimate of trans-Planckian modifications to the primordial power spectrum in inflation

@article{Easther2002GenericEO, title={Generic estimate of trans-Planckian modifications to the primordial power spectrum in inflation}, author={Richard Easther and Brian Randolph Greene and W. H. Shiu}, journal={Physical Review D}, year={2002}, volume={66}, pages={023518} }

We derive a general expression for the power spectra of scalar and tensor fluctuations generated during inflation given an arbitrary choice of boundary condition for the mode function at a short distance. We assume that the boundary condition is specified at a short-distance cutoff at a scale $M$ which is independent of time. Using a particular prescription for the boundary condition at momentum $p = M$, we find that the modulation to the power spectra of density and gravitational wave…

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