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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Paul Steinhardt


PIRSA:13030076  ( MP4 Medium Res , MP3 , PDF ) Which Format?
ONCE UPON A TIME IN KAMCHATKA: THE EXTRAORDINARY SEARCH FOR NATURAL QUASICRYSTALS
Speaker(s): Paul Steinhardt
Abstract: A quasicrystal is an exotic state of matter with symmetries once thought to be impossible for matter. The concept was first introduced and the first examples were synthesized in the laboratory thirty years ago, but could Nature have beaten us to the punch? This talk will describe the search for th... read more
Date: 06/03/2013 - 7:00 pm

PIRSA:13030079  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Rethinking Cosmology
Speaker(s): Paul Steinhardt
Abstract: This talk will begin by discussing one by one the various reasons why cosmologists today consider the big bang inflationary cosmology to be the leading, if not proven, theory of the universe and then explaining  why each of these reasons is flawed. This leads naturally to the quest... read more
Date: 06/03/2013 - 2:00 pm
Series: Colloquium

PIRSA:11070029  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Meeting the Challenges
Speaker(s): Paul Steinhardt
Abstract: This talk will be a heuristic discussion of the challenges for the big bang inflationary picture and possible approaches for addressing them.
Date: 14/07/2011 - 11:20 am

PIRSA:09100204  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Meet a Scientist - Paul Steinhardt
Speaker(s): Paul Steinhardt
Abstract: Big Bang cosmology, inflationary growth of the universe, seeds for the formation of galaxies and large-scale structure, dark energy and dark matter, and also “quasicrystals” - a new phase of solid matter with impossible symmetries.
Date: 27/01/2009 - 2:35 am
Collection: Meet a Scientist

PIRSA:08050058  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Some Thoughts on Dark Energy, Inflation and Extra Dimensions
Speaker(s): Paul Steinhardt
Abstract:
Date: 02/06/2008 - 3:05 pm
Collection: PASCOS 08

PIRSA:06090000  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Impossible Crystals
Speaker(s): Paul Steinhardt
Abstract: This is a story of how the impossible became possible. How, for centuries, scientists were absolutely sure that solids (as well as decorative patterns like tiling and quilts) could only have certain symmetries - such as square, hexagonal and triangular - and that most symmetries, including five-fold... read more
Date: 06/09/2006 - 7:00 am
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