TOI

Theoretical Foundations and Observational Tests of Inflationary Cosmology

 Coordinatore THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE 

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 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 1˙493˙535 €
 EC contributo 1˙493˙535 €
 Programma FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call ERC-2011-StG_20101014
 Funding Scheme ERC-SG
 Anno di inizio 2011
 Periodo (anno-mese-giorno) 2011-10-01   -   2016-09-30

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE

 Organization address address: The Old Schools, Trinity Lane
city: CAMBRIDGE
postcode: CB2 1TN

contact info
Titolo: Dr.
Nome: Daniel
Cognome: Baumann
Email: send email
Telefono: +44 1223 766918

UK (CAMBRIDGE) hostInstitution 1˙493˙535.00
2    THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE

 Organization address address: The Old Schools, Trinity Lane
city: CAMBRIDGE
postcode: CB2 1TN

contact info
Titolo: Ms.
Nome: Renata
Cognome: Schaeffer
Email: send email
Telefono: +44 1223 333543
Fax: +44 1223 332988

UK (CAMBRIDGE) hostInstitution 1˙493˙535.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

waves    gravitational    theoretical    data    inflationary    cmb    fluctuations    observations    eft    physics    question    inflation    theory   

 Obiettivo del progetto (Objective)

'Observations of the temperature fluctuations in the cosmic microwave background (CMB) have transformed cosmology into a quantitative science. This revolution has led to a detailed understanding of the geometry and composition of the universe. However, the microphysical origin of the CMB fluctuations remains a mystery. Although quantum-mechanical fluctuations during a early period of inflationary expansion provide a remarkably successful description of the data, a concrete realization of inflation in a fundamental theory of particle physics remains elusive. Moreover, it seems almost certain that the inflationary era involved physics beyond the Standard Model. This is both a challenge and a fantastic opportunity to learn about physics at the highest energy scales from cosmological observations.

With the ERC grant I plan to form a group at Cambridge University that will explore both the theoretical foundations and the observational consequences of inflation. A key question that a satisfactory microscopic theory of inflation should answer is why the mass of the inflaton field is much smaller than its natural value. We will search for answers to this question both from the bottom up in effective field theory (EFT) and from the top down in string theory. We will furthermore initiate the first systematic study of large-field inflation, thereby providing the theoretical foundation for inflationary models with observable gravitational waves. To make contact with observations we will then develop an EFT for the inflationary fluctuations as Goldstone bosons of spontaneously broken time-translations. We will compare the predictions of that theory to the latest CMB observations. Finally, we will use the data to pursue two of the central signatures of the physics of inflation: gravitational waves and non-Gaussianity.'

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