The Power Spectrum of Vacuum Fluctuations After a Bounce

On a cosmological bounce background with a single minimum of the scale factor and unit duration, in units set by that duration, the quantities reported here are obtained by direct numerical evolution of the field modes from the contracting branch to the expanding branch. The fitted slope of the dimensionless power over that decade is 0.659. The largest amplification relative to the flat-space reference is 2.05e+03, reached at wavenumber 0.10. The calculation is performed on a stated model background with stated vacuum conventions, and the code and full-precision output are deposited with the paper. This study is simulated and computed from those assumptions; it is not a measurement.