49 citations · 138 across the 9 of their papers we have counts for
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gr-qc2012★ 7 cited
Stochastic background of relic gravitons in a bouncing quantum cosmological model
Dennis Bessada, Nelson Pinto-Neto, Beatriz B. Siffert +1
The spectrum and amplitude of the stochastic background of relic gravitons produced in a bouncing universe is calculated. The matter content of the model consists of dust and radia…
gr-qc2012★ 4 cited
Attractor Solutions in Tachyacoustic Cosmology
Dennis Bessada, William H. Kinney
We study the dynamical stability of "tachyacoustic" cosmological models, in which primordial perturbations are generated by a shrinking sound horizon during a period of deceleratin…
gr-qc2012★ 4 cited
Non-Gaussian signatures of Tachyacoustic Cosmology
Dennis Bessada
I investigate non-Gaussian signatures in the context of tachyacoustic cosmology, that is, a noninflationary model with superluminal speed of sound. I calculate the full non-Gaussia…