Mass Suppression of Particle Creation at a Cosmological 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 massless field at this wavenumber is created with occupation 3.281e-01. At mass 10 the occupation has fallen by a factor 4.839e-09 relative to that value, reaching 1.588e-09 in absolute terms. 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.