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Probing inflation with CMB polarization

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

  • Daniel Baumann
  • Mark G. Jackson
  • Peter Adshead
  • Alexandre Amblard
  • Amjad Ashoorioon
  • Nicola Bartolo
  • Rachel Bean
  • Maria Beltran
  • Francesco De Bernardis
  • Simeon Bird
  • Xingang Chen
  • Daniel J. H. Chung
  • Loris Colombo
  • Asantha Cooray
  • Paolo Creminelli
  • Scott Dodelson
  • Joanna Dunkley
  • Cora Dvorkin
  • Richard Easther
  • Fabio Finelli
  • Raphael Flauger
  • Mark P. Hertzberg
  • Katherine Jones-smith
  • Shamit Kachru
  • Kenji Kadota
  • Justin Khoury
  • William H. Kinney
  • Eiichiro Komatsu
  • Lawrence M. Krauss
  • Julien Lesgourgues
  • Andrew Liddle
  • Michele Liguori
  • Eugene Lim
  • Andrei Linde
  • Sabino Matarrese
  • Harsh Mathur
  • Liam Mcallister
  • Alessandro Melchiorri
  • Alberto Nicolis
  • Luca Pagano
  • Hiranya V. Peiris
  • Marco Peloso
  • Levon Pogosian
  • Elena Pierpaoli
  • Antonio Riotto
  • Uros Seljak
  • Leonardo Senatore
  • Sarah Shandera
  • Eva Silverstein
  • Tristan Smith
  • Pascal Vaudrevange
  • Licia Verde
  • Ben Wandelt
  • Scott Watson
  • Mark Wyman
  • Amit Yadav
  • Wessel Valkenburg
  • Matias Zaldarriaga
  • Scott Dodelson
  • Daniel Baumann
  • Asantha Cooray
  • Joanna Dunkley
  • Aurelien Fraisse
  • Mark G. Jackson
  • Alan Kogut
  • Lawrence Krauss
  • Matias Zaldarriaga
  • Kendrick Smith
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measurements to differentiate various inflationary mechanisms. In particular, a detection of primordial B‐mode polarization would demonstrate that inflation occurred at a very high energy scale, and that the inflaton traversed a super‐Planckian distance in field space. We explain how such a detection or constraint would illuminate aspects of physics at the Planck scale. Moreover, CMB measurements can constrain the scale‐dependence and non‐Gaussianity of the primordial fluctuations and limit the possibility of a significant isocurvature contribution. Each such limit provides crucial information on the underlying inflationary dynamics. Finally, we quantify these considerations by presenting forecasts for the sensitivities of a future satellite experiment to the inflationary parameters.

Original languageEnglish
Title of host publicationCMB polarization workshop
Subtitle of host publicationtheory and foregrounds: CMBPol Mission Concept Study
EditorsScott Dodelson, Daniel Baumann, Asantha Cooray, Joanna Dunkley, Aurelien Fraisse, Mark G. Jackson, Alan Kogut, Lawrence Krauss, Matias Zaldarriaga, Kendrick Smith
Place of PublicationMelville, NY
PublisherAmerican Institute of Physics
ISBN (Print)9780735406780
Publication statusPublished - 2009
EventCMB polarization workshop: theory and foregrounds: CMBPol mission concept study - Fermilab, Aurora, Illinois, United States
Duration: 23 Jun 200826 Jun 2008

Publication series

NameAIP conference proceedings
ISSN (Print)0094-243X


ConferenceCMB polarization workshop: theory and foregrounds: CMBPol mission concept study
CountryUnited States
CityAurora, Illinois


  • 0811.3919v2(1)

    Accepted author manuscript (Post-print), 1.07 MB, PDF document

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