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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Sarah Shandera


PIRSA:15090020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Understanding primordial physics in a finite universe
Speaker(s): Sarah Shandera
Abstract: We hope to find clues about the particle physics of the primordial (inflationary?) universe in the statistics of the cosmological perturbations. However, if the fluctuations are non-Gaussian the statistics we observe can differ significantly from the global, mean predictions of an inflationary model... read more
Date: 01/09/2015 - 11:00 am

PIRSA:15080017  ( MP4 Medium Res , MP3 , PDF ) Which Format?
CMB Anomalies and Non-Gaussianity
Speaker(s): Sarah Shandera
Abstract: When the primordial fluctuations are non-Gaussian and inflation lasts longer than the minimum number of e-folds, the likelihood that we observe mild deviations from isotropy increases. I will present a single framework that encompasses many of the most promising scenarios for generating a hemispheri... read more
Date: 10/08/2015 - 3:50 pm

PIRSA:11070085  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Panel Discussion
Abstract:
Date: 19/07/2011 - 10:30 am

PIRSA:11070019  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Infrared Challenges for Inflation
Speaker(s): Sarah Shandera
Abstract: I will review some recent work on infrared issues for scalar fields in exact and quasi de Sitter space. Renewed interest in this topic has been driven by the observational potential for a more accurate determination of statistics of the primordial curvature perturbations, especially non-Gaussianity.... read more
Date: 15/07/2011 - 4:30 pm

PIRSA:11040020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 14
Speaker(s): Sarah Shandera
Abstract:
Date: 21/04/2011 - 9:00 am

PIRSA:11040019  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 13
Speaker(s): Sarah Shandera
Abstract:
Date: 20/04/2011 - 9:00 am

PIRSA:11040018  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 12
Speaker(s): Sarah Shandera
Abstract:
Date: 19/04/2011 - 9:00 am

PIRSA:11040017  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 11
Speaker(s): Sarah Shandera
Abstract:
Date: 18/04/2011 - 9:00 am

PIRSA:11040014  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 10
Speaker(s): Sarah Shandera
Abstract:
Date: 14/04/2011 - 11:30 am

PIRSA:11040013  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 9
Speaker(s): Sarah Shandera
Abstract:
Date: 14/04/2011 - 10:15 am

PIRSA:10040031  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 15
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Date: 01/04/2010 - 9:00 am

PIRSA:10030118  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 14
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Date: 31/03/2010 - 3:30 pm

PIRSA:10030082  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 13
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Date: 31/03/2010 - 9:00 am

PIRSA:10030081  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 12
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Date: 30/03/2010 - 9:00 am

PIRSA:10030080  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 11
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Date: 29/03/2010 - 9:00 am

PIRSA:10030079  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology - Lecture 10
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Date: 26/03/2010 - 9:00 am

PIRSA:10030078  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 9
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Date: 25/03/2010 - 9:00 am

PIRSA:10030077  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 8
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Date: 24/03/2010 - 9:00 am

PIRSA:10030076  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 7
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Date: 23/03/2010 - 9:00 am

PIRSA:10030075  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 6
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Date: 22/03/2010 - 9:00 am

PIRSA:10030074  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 5
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Date: 19/03/2010 - 9:00 am

PIRSA:10030073  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 4
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Date: 18/03/2010 - 9:00 am

PIRSA:10030072  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 3
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Date: 17/03/2010 - 9:00 am

PIRSA:10030071  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 2
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Date: 16/03/2010 - 9:00 am

PIRSA:10030070  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Explorations in Cosmology (PHYS 649) - Lecture 1
Abstract:
Date: 15/03/2010 - 9:00 am

PIRSA:09050065  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Dealing with derivative interactions
Speaker(s): Sarah Shandera
Abstract: Single field inflation with derivative interactions provides a class of scenarios with interesting theoretical and observational properties. I will discuss properties of correlation functions in generic single field models and the implications of those relationships for inflationary observables, as ... read more
Date: 20/05/2009 - 3:15 pm

PIRSA:08120033  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Statistics in single field inflation
Speaker(s): Sarah Shandera
Abstract: Non-Gaussianity is a powerful observable that may reveal important properties of the fundamental physics of inflation, with qualitative and quantitative features of higher order correlation functions distinguishing between models. Here I will discuss the structure of correlation functions in the mos... read more
Date: 11/12/2008 - 10:00 am

PIRSA:08030064  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Scale dependent non-Gaussianity
Speaker(s): Sarah Shandera
Abstract:
Date: 10/03/2008 - 9:00 am

PIRSA:07100004  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Constraints on scale dependent non-Gaussianity
Speaker(s): Sarah Shandera
Abstract: The detection of primordial non-Gaussianity could provide a powerful means to rule out various inflationary scenarios. Although scale-invariant non-Gaussianity is currently best constrained by the Cosmic Microwave Background, single-field inflation models with changing sound speed can have strongly ... read more
Date: 30/10/2007 - 2:00 pm
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