27–29 May 2026
60 St. George St.
America/Toronto timezone
CITA at 40: A Celebration of Cosmic Discovery

The Quiet Universe - or - Why the Universe Hasn't Collapsed, Yet

Not scheduled
20m
McLennan Physical Laboratories (60 St. George St.)

McLennan Physical Laboratories

60 St. George St.

University of Toronto, St. George Campus
Oral

Speaker

Albert Stebbins (Fermilab)

Description

Non-linear dynamics of cosmological inhomogeneities allow tiny fluctuations on small scales to generate white noise inhomogeneities on much larger scales which, in standard cosmology, will dominate on the largest scales. Observational limits on such a white noise component place severe limits on even tiny small scale fluctuations at early times. In other words the early universe must have been very quiet.

Author

Albert Stebbins (Fermilab)

Presentation materials

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