PIRSA:11080145 Scientific Series Cosmology

DOI10.48660/11080145

Series: Cosmology Talks

Copsey, K. (2011). Gravity and Rapid Tunnelling. Perimeter Institute. https://pirsa.org/11080145

Copsey, Keith. Gravity and Rapid Tunnelling. Perimeter Institute, Aug. 24, 2011, https://pirsa.org/11080145 

@misc{ pirsa_PIRSA:11080145,
  doi = {10.48660/11080145},
  url = {https://pirsa.org/11080145},
  author = {Copsey, Keith},
  keywords = {Cosmology},
  language = {en},
  title = {Gravity and Rapid Tunnelling},
  publisher = {Perimeter Institute},
  year = {2011},
  month = {aug},
  note = {PIRSA:11080145 see, \url{https://pirsa.org}}
}

Abstract

I'll discuss my recent results (1108.2255) showing that, once gravity and some technical confusions are taken care of, two classes of potentials one expects to be generic in a landscape, namely ones resulting in thin-wall instantons or with small relative differences in potentials, result in instantons which typically decay rapidly, including exponentially enhanced rates for thin-wall instantons. I'll explain why this is true both generally and in detail and why the previous treatments have gone astray. This meeting will be designed to be a highly informal and interactive session to present these results in detail and address questions, confusions, and challenges of those, esp. cosmologists, with some level of background in tunnelling. I'll give a broader presentation of this material for a more general audience in the strings group meeting (Friday 11am, space room).

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