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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C10014 - Cosmological Frontiers in Fundamental PhysicsPODCAST Subscribe to podcast

Cosmological Frontiers in Fundamental Physics

Organizer(s): Latham Boyle   Robert Myers   Neenah Navasero   Holly Hatch  

Collection URL: http://pirsa.org/C10014

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On loops in Inflation
Speaker(s): Leonardo Senatore
Abstract: TBA
Date: 15/06/2010 - 10:45 am

CMB Frontiers: dark energies, polarization, high resolution, non-Gaussianity
Speaker(s): Richard Bond
Abstract: TBA
Date: 15/06/2010 - 12:00 pm

Dark forces and alternative BBN scenarios
Speaker(s): Maxim Pospelov
Abstract: TBA
Date: 15/06/2010 - 12:45 pm

Eternal Inflation without Metaphysics
Speaker(s): Thomas Hertog
Abstract: TBA
Date: 15/06/2010 - 3:30 pm

Holographic Non-Gaussianity
Speaker(s): Kostas Skenderis
Abstract: We discuss holographic models for the inflationary epoch. We show how cosmological observables such as the primordial spectrum and non-Gaussianities can be computed via computations of correlation functions of a dual three dimensional QFT (without gravity!) We present a general class of models that ... read more
Date: 15/06/2010 - 4:15 pm

Phases of eternal inflation
Speaker(s): Leonard Susskind
Abstract: TBA
Date: 15/06/2010 - 5:15 pm

Infrared Issues in de Sitter Space: Secular Growth of Fluctuations and the Breakdown of the Semiclassical Approximation.
Speaker(s): Richard Holman
Abstract: I'll discuss some work done in collaboration with Cliff Burgess, Louis Leblond and Sarah Shandera on the significance of the IR divergences in de Sitter space. First, I'll talk about how large fluctuations at long distances can induce the failure of the loop expansion for interacting field theories ... read more
Date: 16/06/2010 - 10:30 am

The generation of primordial magnetic fields
Speaker(s): Ruth Durrer
Abstract: Magnetic fields are ubiquitous in our Universe. The are observed in galaxies and clusters in our vicinity and at high redshifts. In my talk I outline the possibilities to generate magnetic fields in the early Universe during inflation or during a first order phase transition. I explain the form o... read more
Date: 16/06/2010 - 11:15 am

Cosmology with 300,000 Standard Sirens
Speaker(s): Curt Cutler
Abstract: I will describe recent work by Cutler&Holz and Hirata, Holz, & Cutler showing that a highly sensitive, deci-Hz gravitational-wave mission like BBO or Decigo could measure cosmological parameters, such as the Hubble constant H_0 and the dark energy parameters w_0 and w_a, far more acc... read more
Date: 16/06/2010 - 2:00 pm
Series: Colloquium

A comment on gravitational waves and the scale of supersymmetry breaking
Speaker(s): Alexander Westphal
Abstract: It has been suggested, by Kallosh and Linde, that a generic bound on inflation in string theory keeps the Hubble scale of inflation $H$ smaller than the gravitino mass, $m_{3/2}$. Given that models with low-energy supersymmetry have $m_{3/2}$ smaller than a TeV, this is a severe constraint, and w... read more
Date: 16/06/2010 - 3:45 pm

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