The tensor bi-spectrum in a matter bounce

  title={The tensor bi-spectrum in a matter bounce},
  author={Debika Chowdhury and Vijayakumar Sreenath and L. Sriramkumar},
Matter bounces are bouncing scenarios wherein the universe contracts as in a matter dominated phase at early times. Such scenarios are known to lead to a scale invariant spectrum of tensor perturbations just as de Sitter inflation does. In this work, we examine if the tensor bi-spectrum can discriminate between the inflationary and the bouncing scenarios. Using the Maldacena formalism, we analytically evaluate the tensor bi-spectrum in a matter bounce for an arbitrary triangular configuration… CONTINUE READING
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