Tensor Mode Creation and the Graviton Background Produced by 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 integrated tensor energy density at the evaluation time is 2.433e-07 in bounce units. The spectrum per logarithmic interval peaks at wavenumber 0.58, where it reaches 1.375e-07. 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.